Calvin Lawrence Christensen (July 8, 1927 – August 31, 2011) was an American basketball player. He played collegiately for the University of Toledo. He was selected by the Tri-Cities Blackhawks in the 5th round of the 1950 NBA draft. He played for the Blackhawks (1950–51), Milwaukee Hawks (1951–52) and Rochester Royals (1952–55) in the NBA for 291 games. He died in 2011 in Waterville, Ohio where he lived with his wife of 51 years, Sharon.