Cal may refer to:

• Cal Abrams (1924-1997), Major League Baseball player
• Cal Crutchlow (born 1985), English motorcycle road racer
• Cal Dooley (born 1954), former member of the U.S. House of Representatives for California
• Cal Eldred (born 1967), retired Major League Baseball pitcher
• Cal Farley (1895-1967), founder of Boys Ranch, called by some "America's Greatest Foster Father"
• Cal Gardner (1924-2001), National Hockey League player
• Cal Hubbard (1900-1977), Hall of Fame collegiate and professional football player and Hall of Fame baseball umpire
• Cal Jones (1933-1956), collegiate football player
• Cal McLish (1925-2010), Major League Baseball pitcher
• Cal McVey (1849-1926), early professional baseball player
• Cal Murphy (1932–2012), Canadian football coach, general manager and scout
• Cal O'Reilly (born 1986), National Hockey League player
• Cal Ripken, Jr. (born 1960), Major League Baseball Hall of Fame retired shortstop and third baseman
• Cal Ripken, Sr. (1935-1999), Major League Baseball coach and manager
• Cal Schenkel (born 1947), artist specialising in album cover design
• Cal Smith (born 1932), American country music singer and guitarist
• Cal Stoll (1923-2000), American football player and coach
• Cal Thomas (born 1942), conservative pundit
• Cal Tjader (1925-1982), American Latin jazz musician
• Cal Worthington (born 1920), American car dealer

Çal is a town and a district of Denizli Province in the inner Aegean region of Turkey. Çal district area occupies a central position in the northern part of its province and neighbors the central district of Denizli to the south-west and the district areas of Güney to the west and Honaz to the south. To the east of Çal district lies clockwise the districts of Bekilli, Çivril and Baklan.