Jan Geert Ankerman (March 2, 1906 in Wommels, Friesland – December 27, 1942 in Rangoon, Burma) was a Dutch field hockey player who competed in the 1928 Summer Olympics.
He was a member of the Dutch field hockey team, which won the silver medal.
He played all four matches as halfback.
He died in a Japanese camp in Burma during World War II.