Sæther is a Norwegian surname. Notable people with the surname include:
Andrine Sæther (born 1964), Norwegian actress
Bjarne Berg-Sæther (1919–2009), Norwegian politician for the Labour Party
Jan Valentin Sæther (born 1944), Norwegian figurative painter, sculptor and Gnosticism priest
Ole Sæther (1870-1946), Norwegian rifle shooter
Olaf Sæther (1872-1945), Norwegian rifle shooter
Peder Sæther (1810-1886), Norwegian-American banker
Svein Ole Sæther (born 1948), Norwegian diplomat
