Blue Six represented the designation for the sixth pilot belonging to Blue Squadron, identified by their callsign.

At the Battle of Ryloth, the clone trooper pilot known as "Swoop" served as Blue Six.
Around the period of the Battle of Scarif, the Rebel pilot Vangos Grek utilized this particular callsign.
A pilot from the New Republic's 77 Squadron, which operated as Blue Squadron during that engagement, used the callsign in the Battle of Jakku.