Guidry is a surname. Notable people with the surname include:
Brian Guidry (born 1968), American painterCarolyn Tyler Guidry (born 1937), American bishopDick Guidry (1929–2014), American businessmanGreg G. Guidry (born 1961), American lawyer and juristGreg Guidry (1950–2003), American singerJames Guidry (born 1967), American football playerJesse J. Guidry (c. 192121987), American politicianJohn Michael Guidry (born 1962), American juristMark Guidry (born 1959), American jockeyMickey Guidry (born 1966), American football playerPaul Guidry (born 1944), American football playerRichard Guidry (1949–2008), American academicRobert Charles Guidry (1938–2010), known as Bobby Charles, American singer-songwriter.Ron Guidry (born 1950), American baseball player