Guillory is a surname. Notable people with the surname include:
Anthony Guillory (born 1942), American football linebacker
Curtis Guillory, American bishop
Elbert Guillory (born 1944), Louisiana politician
Isaac Guillory (1947–2000), American folk guitarist
Lorilei Guillory
Matt Guillory (born 1974), American musician
Sienna Guillory (born 1975), English actress and model