Joseph Leycester (1784 - 27 August 1859) was an Irish politician.
Leycester lived in Cork, where he was the agent for the Bank of Ireland. He served as Sheriff of Cork City in 1807, and as Lord Mayor of Cork in 1833. At the 1835 UK general election, he stood in Cork City for the Conservative Party, winning the seat. However, he was unseated on petition on 18 April that year. He stood again in Cork City at the 1837 UK general election, but was not elected.[1] [2]