CA6 may refer to :

• Carbonic anhydrase VI, a human gene
• United States Court of Appeals for the Sixth Circuit

CA-6 may refer to

• USS California (ACR-6), a ship
• California's 6th congressional district
• California State Route 6 (1934)
• CAC Wackett, an aircraft

• Mississippi State Penitentiary at Parchman
• Mississippi State Penitentiary Fire Department
• Mississippi State Penitentiary Hospital
• Mississippi State Pentientiary
• Mississippi State prison
• Mississippi State Prison
• Mississippi State Prison at Parchman
• Mississippi State University Bulldogs
• Mississippi State University Riley Center
• Mississippi State University XAZ-1 Marvelette
• Mississippi State University XV-11 Marvel
• Mississippi Station, Ontario
• Mississippi summer
• Mississippi Summer Project
• Mississippi Surge
• Mississippi Territorial Legislature
• Mississippi to Mali
• Mississippi United States Senate elections, 2008
• Mississippi Valley Broadcasters
• Mississippi Valley Broadcasters, LLC
• Mississippi Valley Conference (Wisconsin)
• Mississippi Valley Delta Devils men's basketball
• Mississippi Valley League
• Mississippi Valley State College
• Mississippi Valley State Delta Devils