Caillat is a French surname. Notable people with the surname include:
-
Colbie Caillat (born 1985), American singer-songwriter
-
Colette Caillat (1921–2007), French professor
-
Dominique Caillat (born 1956), Swiss playwright
-
Ken Caillat (born 1946), American record producer
-
Stéphane Caillat (1928–2020), French composer
