Nicholas Raymond Thomas Etten (September 19, 1913 – October 18, 1990) was an American first baseman in major league baseball, who played for the Philadelphia Athletics (1938–39), Philadelphia Phillies (1941–42, 1947) and New York Yankees (1943–46).

Etten attended St. Rita of Cascia High School on the south side of Chicago.

Etten attended Villanova University and was drafted by the Athletics from the Oakland Oaks minor league team.

He made his major league debut with the Athletics late in 1938, also playing part-time for them in 1939.

During his four-year stint with the Yankees, Etten also ranked among league leaders in most offensive categories, was a member of the 1943 World Champion team, and was selected to the All-Star Game in 1945.