The Mayor, Burgesses, and Commonalty of the Borough of Carmarthen were established by a royal charter of 1604. The Mayorship was transferred in 1835 to Carmarthen Borough Council, and following local government reorganization in 1974 to Carmarthen Town Council.
| Year | Name | |
|---|---|---|
| circa 1300 | Walter Malenphant | |
| 1360 | John Andrew Spilman | |
| 1401–1414 | David Lloyd | |
| 1415–1419 | John Moore | |
| 1420–1424 | William Read | |
| 1425 -1426 | Nicholas Blewitt | |
| 1427–1430 | John Willy Fisher | |
| 1431–1433 | William Read | |
| 1434–1439 | John Moore | |
| 1440–1441 | Nicholas Blewitt | |
| 1442–1448 | Stephen Griffith | |
| 1449–1458 | Lewis ab Rees Gethin | |
| 1459–1462 | Rees Howell | |
| 1463–1469 | John Wardibeck | |
| 1470–1471 | Rees Howell | |
| 1472 | Thomas Gethin | |
| 1473–1474 | William Weithie | |
| 1475–1480 | John Wardbeck | |
| 1481 | Rees Howell | |
| 1482–1483 | John Higgon | |
| 1484–1487 | Jenkin Lloyd Hire | |
| 1488 | John Higgon | |
| 1489 | Sir Rhys ap Thomas | |
| 1490–1492 | Rees ab Ievan ab Eynon | |
| 1493 | Morris Read | |
| 1494 | Richard ab Owen | |
| 1495–1496 | Sir Rhys ap Thomas | |
| 1497 | Rees ab Ievan ab Eynon | |
| 1498 | Stephen Gravell | |
| 1499–1500 | Hugh Higgon | |
| 1501–1503 | Sir Rhys ap Thomas | |
| 1504 | Jeffery Dier | |
| 1505–1507 | Sir Rhys ap Thomas | |
| 1508–1509 | Richard Read | |
| 1510 | William Morris | |
| 1511 | Philip Rees ab Thomas Vychan | |
| 1512 | Sir Giffith Rhys KT | |
| 1513 | William ab Gwilim With | |
| 1514 | Griffith Rhys | |
| 1515 | Gwalter Dier | |
| 1516–1517 | Philip David | |
| 1518 | Morgan Taylor | |
| 1519 | John Thomas ab Gwilym | |
| 1520 | John Hire | |
| 1521 -1522 | Richard ab Gwalter | |
| 1523 | Griffith Higgon | |
| 1524 | David ab David | |
| 1525 | John Jenins | |
| 1526 | Thomas ab Owen | |
| 1527 | John ab Rees ab Ievan | |
| 1528–1529 | Philip David | |
| 1530 | David Llewelyn | |
| 1531 | Griffith Higgon | |
| 1532–1533 | Sir Walter Devereux KT | |
| 1534 | John David Lloyd | |
| 1535–1536 | Sir Walter Devereux KT | |
| 1537 | Richard Devereux | |
| 1538 | Martin Davy | |
| 1539 | Thomas Brine | |
| 1540–1541 | David Rees | |
| 1542 | William Read | |
| 1543 | Thomas Hancocke | |
| 1544 | Thomas Walter | |
| 1545 | Morgan ab David | |
| 1546 | John Jenins | |
| 1547 | Martin Davy | |
| 1547 | David Richards | |
| 1548 | Richard ab Ievan | |
| 1549 | Griffith William | |
| 1550 | Griffith Donne | |
| 1551 | David Nash | |
| 1552 | Griffith Higgon | |
| 1553 | Thomas Morgan | |
| 1554 | Jenkin David | |
| 1555 | John Vaughan | |
| 1556 | John Griffith | |
| 1557 | Griffith Donne | |
| 1558 | Hymphrey Toye | |
| 1559 | Thomas Beynon | |
| 1560 | Rees Penry | |
| 1561 | William Davies | |
| 1562 | Jenkin David | |
| 1563 | David John Read | |
| 1564 | John Vaughan | |
| 1565 | Robert Brit | |
| 1566 | Griffith John David Lloyd | |
| 1567 | Thomas Lewis | |
| 1568 | Griffith ab Eynon | |
| 1569 | Lewis Philip David | |
| 1570 | Richard Lewis | |
| 1571 | Lewis William | |
| 1572 | Jenkin David | |
| 1573 -1574 | Richard Phillips | |
| 1575 | Walter Vaughan.[1] | |
| 1576 | Griffith ab Ievan | |
| 1577 | Walter Vaughan | |
| 1578 | David ab Ievan Taylor | |
| 1579–1580 | William Phillips | |
| 1581 | Walter Vaughan | |
| 1582 | Griffith ab Ievan | |
| 1583 | Robert Toye | |
| 1584 | Edward Middleton | |
| 1585 | David Edwards | |
| 1586 | Thomas Nothed | |
| 1587 | Thomas Atkins | |
| 1588 | Philip William | |
| 1589 | Griffith Howell | |
| 1590 | John Morris | |
| 1591 | Harry Owen | |
| 1592 | John Brit | |
| 1593 | Thomas Davies | |
| 1594 | Robert Brit | |
| 1595 | John Fisher | |
| 1596 | Morris Lloyd | |
| 1597 | William Thomas Morris | |
| 1597 | David Edwardes | |
| 1598 | Walter Vaughan | |
| 1598 | Philip William | |
| 1599 | Henry Vaughan | |
| 1600 | Henry Phillips | |
| 1601 | Thomas Rees | |
| 1602 | William Thomas | |
| 1603 | Ievan Thomas | |
| 1604 | Sir John Vaughan KT | |
| 1605 | Thomas Parry | |
| 1606 | Thomas Atkins | |
| 1607 | Ievan Long | |
| 1608 | John Griffith John | |
| 1609 | Thomas Vaughan | |
| 1610 | Martin Beynon | |
| 1611 | William Lewes | |
| 1612 | Thomas Higgs | |
| 1613 | Thomas Davids | |
| 1614 | Edward Atkins | |
| 1614 | Martin Beynon | |
| 1615 | Richard Jeanes | |
| 1616 | David Edwards | |
| 1617 | John Bowen | |
| 1618 | Griffith Davids | |
| 1619 | Griffith Lewis | |
| 1620 | Thomas Atkins | |
| 1621 | Morgan Davids | |
| 1622 | David Beven | |
| 1623 | Richard Barrett | |
| 1624 | John Vaughan | |
| 1625 | Thomas Muggall | |
| 1625 | William Thomas | |
| 1626 | Griffith Beynon | |
| 1627 | Anthony Johns | |
| 1628 | Griffith Read | |
| 1629 | William Lewis | |
| 1630 | Richard Jeanes | |
| 1631 | John Bowen | |
| 1632 | Griffith Lewis | |
| 1633 | Thomas Atkins | |
| 1634 | Thomas Woode | |
| 1635 | Thomas Jones | |
| 1636 | Richard Thomas | |
| 1637 | Robert Lewis | |
| 1638 | Attwill Taylor | |
| 1639 | Lewis Johnes | |
| 1640 | Rowland Phillips | |
| 1641 | Morris James | |
| 1642 | George Ockley | |
| 1643 | David Bevan | |
| 1644 | Thomas Phillips | |
| 1645–1646 | Thomas Phillips | |
| 1647 | George Jeanes | |
| 1648 | Thomas Jones | |
| 1649 | Dawkin Gove | |
| 1650 | Robert Brend | |
| 1651 | John Hughes | |
| 1652 | David Edwardes | |
| 1653 | Richard Thomas | |
| 1654 | Edward Jones | |
| 1655 | John Vaughan | |
| 1656 | Robert Brit | |
| 1657 | William Gower | |
| 1658 | Griffith Beynon | |
| 1659 | Walter Thomas | |
| 1660 -1661 | John Hughes | |
| 1661 | Anthony Jones | |
| 1662 | George Lewis | |
| 1663 | John Ockley | |
| 1664 | Robert Lewis | |
| 1665 | Thomas Beynon | |
| 1666 | John Scurlocke | |
| 1667 | Richard Leigh | |
| 1668–1669 | John Muggell | |
| 1670 | William Brigstocke | |
| 1671 | Sir Henry Vaughan KT | |
| 1672 | Robert Lewis | |
| 1673 | Altham Vaughan | |
| 1674 | John Vaughan | |
| 1675 | John Williams | |
| 1676 | Thomas Griffith | |
| 1677 | Thomas Jones | |
| 1678 | Dawkin Gove | |
| 1679 | Thomas Newsham | |
| 1680 | David Jones | |
| 1681 | Edward Gower | |
| 1682 | Edward Jones | |
| 1683 | Owen Brigstocke | |
| 1684 | William Jones | |
| 1685 | John Phillips | |
| 1686 | Charles de Lancy | |
| 1687 | Sir Sackville Crow | |
| 1688 | Rowland Gwynne | |
| 1689 | Sir Rice William KT | |
| 1689 | Martin Beynon | |
| 1690 | John Ryder | |
| 1691 | Thomas Rogers | |
| 1692 | George Catchmaid | |
| 1693 | Howell David | |
| 1694 | Thomas Powell | |
| 1695 | Griffith Lewis | |
| 1696 | Morris James | |
| 1697 | John Davies | |
| 1698 | Theophilus Bevan | |
| 1699 | Griffith William | |
| 1699 | William Brigstocke | |
| 1700 | John Williams | |
| 1701 | Henry Vaughan | |
| 1702 | Sir Anthony Rudd Bart | |
| 1703 | John Scurlock | |
| 1704 | Thomas Mainwaring | |
| 1705 | Anthony Jones | |
| 1706 | William Brigstocke | |
| 1706 | William Jones | |
| 1707 | Anthony Jones | |
| 1708 | John Newsham | |
| 1709 | James Phillips | |
| 1710 | William Gower | |
| 1711 | John Vaughan | |
| 1712 | Nathaniel Morgan | |
| 1713 | John Morgan | |
| 1714 | Rees Thomas | |
| 1715 | Francis Lloyd | |
| 1716 | John Thomas | |
| 1717 | Thomas Jones | |
| 1718 | Thomas Lloyd | |
| 1719 | David Lloyd | |
| 1719–1720 | Benjamin Davies | |
| 1721 | Morgan Davies | |
| 1722 | William Thomas | |
| 1723 | Arnold Bowen | |
| 1724 | Peter Chetle | |
| 1725 | John Lewis | |
| 1726 | John Roberts | |
| 1727 | John Williams | |
| 1728 | Thomas Rees | |
| 1729 | George Davies | |
| 1730 | John Phillips | |
| 1731 | Henry Price | |
| 1732 | John Leigh | |
| 1733 | Robert Rees | |
| 1734 | James Johnson | |
| 1735 | William Rees | |
| 1736 | David Lewes | |
| 1737 | Edward Davies | |
| 1738 | John Newsham | |
| 1739 | Charles Morgan | |
| 1740 | John Lloyd | |
| 1741 | John Phillips | |
| 1742 | John Williams | |
| 1743 | William Thomas | |
| 1744 | John Morgan | |
| 1745 | John Phillips | |
| 1746 | Evan Williams | |
| 1747 | Anthony Rogers | |
| 1747 | William Thomas | |
| 1748 | John Phillips | |
| 1749 | Evan Williams | |
| 1750 | David Lloyd | |
| 1750 | D. Thomas | |
| 1751 | John Jones | |
| 1752 | John Lewis | |
| 1753 | Francis Morgan | |
| 1754 | David Edwardes | |
| 1754 | John Adams | |
| 1755 | Dr Roger Phillips | |
| 1756 | William Leigh | |
| 1756 | Evan Davies | |
| 1757 | John Evan | |
| 1757 | Charles Webb | |
| 1758 | William Leigh | |
| 1759 | Arthur Jones | |
| 1759 | Robert Morgan | |
| 1759 | Admiral Thos Jones | |
| 1760 | Woodford Rice | |
| 1760 | James Wilson | |
| 1761 | James Evans | |
| 1761 | 1. James ab William Brenin | |
| 1762 | Edward Read | |
| 1762 | William Morgan | |
| 1763 | John Evans | |
| 1763 | Vaughan Horton | |
| 1763 | James Williams | |
| 1764 | Albert Davids | |
| 1765 | Edward Parry | |
| 1766 | Francis Morgan | |
| 1766 | Edward Parry | |
| 1767 | Vaughan Horton | |
| 1768 | George Rice | |
| 1769 | Arthur Jones | |
| 1770 | Morris Howell | |
| 1771 | Henry Morris | |
| 1772 | David Edwardes | |
| 1773 | William Williams | |
| 1774 | George Phillips | |
| 1775 | Richard le Davids | |
| 1776 | David Williams | |
| 1777 | Walter George | |
| 1778 | George Evans | |
| 1780 | George Lewis | |
| 1781 | John Morgan | |
| 1782 | John Lloyd | |
| 1783 | Thomas Howell | |
| 1784 | John William | |
| 1785 | John George Phillips | |
| 1786 | Thomas Blome | |
| 1787 | Morgan Lewis | |
| 1788 | Jeremiah Owen | |
| 1789 | Richard Howell | |
| 1790 | William Price | |
| 1791 | Hon. George Talbot Rice | |
| 1792 | Herbert Ball | |
| 1793 | Thomas Williams | |
| 1794 | William Lewes | |
| 1795 | William Bonnell | |
| 1795 | William Price | |
| 1795 | John Morgan | |
| 1796 | Josiah Llewelyn | |
| 1797 | David John Edwardes | |
| 1798 | Charles Morgan | |
| 1799 | Richard Mansel Phillips | |
| 1800 | William Morris | |
| 1801 | John Morgan | |
| 1802 | James Hughes | |
| 1803 | Sir William Paxton | |
| 1804 | Thomas Morris | |
| 1805 | William Morgan | |
| 1806 | Charles Morgan MD | |
| 1807 | John Hughes | |
| 1808 | John William Hughes | |
| 1809 | John, Lord Cawdor | |
| 1810 | John Jones | |
| 1811 | John Geo Phillips | |
| 1812 | Mark Roch | |
| 1813 | David Morris | |
| 1814 | Sir Geo. G. Williams BT | |
| 1815 | Charles Morgan MD | |
| 1816 | Charles Morgan | |
| 1817 | John Geo. Phillips | |
| 1818 | John Hughes | |
| 1819 | Thomas Morris | |
| 1820 | Charles Morgan | |
| 1821 | John Hughes | |
| 1822 | Thomas Morris | |
| 1823 | Charles Morgan | |
| 1824 | David John Edwardes | |
| 1825 | Daniel Prytherch | |
| 1826 | Robert Waters | |
| 1827 | Grismond Phillips | |
| 1828 | Aaron Thomas | |
| 1829 | John Bowen MD | |
| 1830 | David Jones | |
| 1831 | Daniel John Edwardes | |
| 1832 | Daniel Prytherch | |
| 1833 | Grismond Phillips | |
| 1834 | Aaron Timms | |
| 1835 | David Davies | |
| 1836 | Capt John George Phillips | |
| 1837–1838 | Thomas Morris | |
| 1839 | William Phillips | |
| 1840 | Charles Jones | |
| 1841 | Thomas Taylor Webb | |
| 1842 | William Morris | |
| 1843 | Edmond Hills Stacey | |
| 1844 | William Morris | |
| 1845 | George Davies | |
| 1846 | Thomas Charles Morris | |
| 1847 | Samuel Tardrew | |
| 1848 | William George Thomas | |
| 1849 | John Lewis | |
| 1850–1851 | Valentine Davies | |
| 1852–1853 | William Morris | |
| 1854–1855 | Lewis Morris | |
| 1856 | Thomas Charles Morris | |
| 1857 | John Lewis Phillips | |
| 1858 | James Rowlands | |
| 1859 | Henry Norton | |
| 1860–1861 | John Thomas | |
| 1862–1863 | Wm de Grunchy Warren | |
| 1864 | Valentine Davies | |
| 1865 | John Adams | |
| 1866 | Robert Brodie | |
| 1867 | E. D. Bowen Jones | |
| 1868 | David Davies | |
| 1869 -1870 | John Lewis | |
| 1871 | Henry Norton | |
| 1872 | John Thomas | |
| 1873 | Wm de Grunchy Warren | |
| 1874 | David Lewis | |
| 1875 | David M. Morgan | |
| 1876 | David Bonnell Edwards | |
| 1877 | Thomas Mostyn Davies | |
| 1878 | Thomas Thomas | |
| 1879 | Richard William Richards | |
| 1880 | Charles William Jones | |
| 1881 | John Morris | |
| 1882–1884 | James Jenkyn Jones | |
| 1885 | John Lewis | |
| 1886 | Thomas Mostyn Davies | |
| 1887 | William Richard Edwards | |
| 1888 | Edward Alfred Rogers | |
| 1889 | Howell Howells | |
| 1890 | Thomas Davies | |
| 1891–1892 | Thomas Jenkins | |
| 1893 | James Davies | |
| 1894 | Henry Cadle | |
| 1895–1898 | Henry Brunel White | |
| 1899 | John Lewis | |
| 1900 | Walter Spurell | |
| 1901 -1902 | Edward Colby Evans | |
| 1903 | Walter Spurell | |
| 1904 -1905 | Edward Alfred Rogers | |
| 1906 | Henry Evan Blagdon Richards | |
| 1907 | Joseph Nicholas Williams[2] | |
| 1908 | John Lewis | |
| 1909 | John Crossman | |
| 1910 | Walter Lloyd | |
| 1911 | William Thomas | |
| 1912 -1913 | John Beynon Arthur | |
| 1914–1917 | John Lewis | |
| 1918–1919 | Alderman William Evans | |
| 1920–1921 | Andrew Fuller Mills | |
| 1922 | Lewis David Thomas | |
| 1923 | John Richards | |
| 1924 | Andrew Fuller Mills | |
| 1925 | John Hinds | |
| 1926 | Andrew Fuller Mills | |
| 1927 | Walter Spurell | |
| 1928–1929 | David John Davies | |
| 1930–1932 | William Jones | |
| 1933–1935 | Thomas Lloyd | |
| 1936–1937 | John Owen Morgans | |
| 1938–1941 | James Islwyn Davies | |
| 1942–1944 | Philip William Trefor Thomas | |
| 1945 | John Russell | |
| 1945 | Lewis Jones | |
| 1946–1947 | John Jenkins | |
| 1948–1950 | Enoch Davies | |
| 1950–1952 | William David Jones | |
| 1952–1954 | Charles Wright Griffiths | |
| 1954–1956 | John James Lewis | |
| 1956–1958 | Clifford Caron Jones | |
| 1958–1959 | T. J. Thomas (Died in Office) | |
| 1959–1961 | M. E. Clifford Jones | |
| 1961 (May to Sept) | Alice. K. White (Died in Office) | |
| 1961–1963 | T. Idwal Jones | |
| 1963–1964 | Alderman Ellis J. Powell | |
| 1964–1965 | Sidney Jeremy | |
| 1965–1966 | D. D. Harries | |
| 1966–1967 | William Wynford Francis Davies | |
| 1967–1968 | Charles Wright Griffiths | |
| 1968 | Leslie Hyde Howells | |
| 1969 | David Jones Howells | |
| 1970 | William Colvin | |
| 1971 | Ronald Byles Evans | |
| 1972 | Lawrence Victor Rice | |
| Since the passing of the Local Government Act (1972) | ||
| 1973 | William Roy Nicholl | |
| 1974–1975 | Ivor Morgan Morris | |
| 1975–1976 | Thomas James Hurley | |
| 1976–1977 | Samuel David Thomas | |
| 1977–1978 | Thomas Henry Gwyn Davies | |
| 1978–1979 | Gwyn Morris Williams | |
| 1979–1980 | Joyce Lodwick | |
| 1980–1981 | Helen M. Thomas | |
| 1981–1982 | Peter Hughes Griffiths | |
| 1982–1983 | Samuel David Thomas | |
| 1983–1984 | June Williams | |
| 1984–1985 | John Elfed Williams | |
| 1985–1986 | Kenneth Bryan Maynard | |
| 1986–1987 | Malcolm Morgan Jones | |
| 1987–1988 | Mary Kathleen Davies | |
| 1988–1989 | Siân Morris | |
| 1989–1990 | William Gwynoro Jones | |
| 1990–1991 | Peter Hughes Griffiths | |
| 1991–1992 | John Elfed Williams | |
| 1992–1993 | Sarah Mary Lorraine Maynard | |
| 1993–1994 | Richard John Goodridge | |
| 1994–1995 | Agnes Maria Dunbar | |
| 1995–1996 | Kenneth Bryan Maynard | |
| 1996–1997 | June Williams | |
| 1997–1998 | Richard Edwards | |
| 1998–1999 | Sioned Mair Richards | |
| 1999–2000 | Peter Hughes Griffiths | |
| 2000–2001 | Dr Ioan Aled Matthews | |
| 2001–2002 | Llyr Huws Griffiths | |
| 2002–2003 | William Gwynoro Jones | |
| 2003–2004 | Peter Hughes Griffiths | |
| 2004–2005 | June Williams | |
| 2005–2006 | Phillip Grice | |
| 2006–2007 | Richard Evans | |
| 2007–2008 | Aled Williams | |
| 2008–2009 | Anthony Jenkins | |
| 2009–2010 | Kenneth Wigley Lloyd | |
| 2010–2011 | Alan Douglas Thomas Speake | |
| 2011–2012 | Reverend Tom Talog Defis | |
| 2012–2013 | Philip Grice | |
| 2013–2014 | Douglas Rose | |
| 2014–2015 | Arwel Lloyd | |
| 2015–2016 | Barry Williams | |
| 2020-2022 | Gareth Howell John (term extended due to Covid 19 pandemic) | |
| 2022–2023 | Miriam Margaret Moules[3] | |