Alfons Olszewski (5 April 1916 – 12 July 2006) was a Polish sailor.

He competed in the mixed 6 metres in the 1936 Summer Olympics.

[1] During the Second World War, Olszewski was imprisoned by German forces in Stutthof concentration camp.

[1][2] After the war, he joined a yacht club in Gdynia.

This biographical article related to sailing in Poland is a stub.