Alter Kacyzne (31 May 1885 in Vilnius, Russian Empire – 7 July 1941 in Ternopil, General Government for the Occupied Polish Territories) was a Jewish (Yiddish) writer, poet and photographer.
One of the most significant contributors to Jewish-Polish cultural life in the first half of the 20th century.
Among other things, he is particularly known as a photographer whose work immortalised Jewish life in Poland in the 1920s and 1930s.