Blue Squadron is a Viper Squadron on the Battlestar Pegasus.
During the Battle of the Binary Star System, Blue Squadron is shown on the Dradis screen participating in the battle. It was presumably led by Captain Kara "Starbuck" Thrace (The Captain's Hand).
During the Battle of New Caprica, Blue Squadron departed Galactica as it fell toward the surface of New Caprica. They led hit and run attacks on surface installations during the battle (Exodus, Part II).