FAU or Fau may refer to:
Education Florida Atlantic University, in Boca Raton, Florida, U.S. University of Erlangen–Nuremberg (German: ), in Bavaria, Germany
People Felix Anudike-Uzomah (born 2002), American football player André Fau (1896–1982), French visual artist and poet Fernand Fau (1858–1919), French illustrator and cartoonist Michel Fau (born 1964), French comedian
Places Le Fau, France Fau (river), in Haute-Saône, France
Politics Uruguayan Anarchist Federation (Spanish: ) Free Workers' Union (German: ), a union in Germany Broad Front UNEN (Spanish: ), a political coalition in Argentina
Other uses FAU (gene), encoding 40S ribosomal protein S30 Fau (letter), or digamma, an archaic letter of the Greek alphabet F. Arthur Uebel (FAU), German manufacturer of clarinets Florida Atlantic Owls, the athletic program of Florida Atlantic University Friends' Ambulance Unit, a British ambulance service Uruguayan Air Force (Spanish: ) Automobile Federation of Ukraine Faujasite, a zeolite material
See also Big Fau, a fictional "Megadeus" robot in The Big O