Robert Marshall Heydenfeldt (born September 17, 1933) is a former American and Canadian football player.

Heydenfeldt played tight end and punter for coach Red Sanders at University of California, Los Angeles (UCLA) from 1952-1954.

He was a member of the Bruins team that in 1954 was named the FWAA & UPI National Champions.

He was commissioned a 2nd lieutenant in the United States Air Force Reserves upon graduation from UCLA.

[1] He played professionally for the Edmonton Eskimos of the Western Interprovincial Football Union and won the 1955 Grey Cup.