| Seán an tSalainn French | |
| Birth Date: | 1489 |
| Occupation: | Lawyer |
| Office: | Mayor of Galway |
| Term Start: | 1538 |
| Term End: | 1539 |
| Predecessor: | Martin Lynch |
| Successor: | Arthur Lynch and Arthur French |
Seán an tSalainn French (1489–1546) was Mayor of Galway from 1538 to 1539.
French was born in Galway, a member of one of The Tribes of Galway. Baptised John, he was known as Seán an tSalainn ('John of the Salt') because of the immense wealth he accrued as a merchant. He financed several additions to St. Nicholas' Collegiate Church, and had a chapel built on the south side of St. Francis Abbey. A large stone building, called John French's Chamber, was erected on arches, just outside the town walls, over the river Corrib.
Four of his sons later became Mayors - Dominick (1568–69); Peter (1576–77); Robuck French (1582–83); Marcus French (1604–1605).