Konstantin Mihailov (also Mihaylov; Bulgarian: Константин Михайлов; born 22 May 1964) is a Bulgarian former professional ice hockey and roller in-line hockey goaltender. He played in 28 Ice Hockey World Championships with the Bulgaria men's national ice hockey team, and three IIHF Inline Hockey World Championships with the , then retired from international play at age 51. His lengthy international career was recognized by the International Ice Hockey Federation (IIHF) in 2019, as a recipient of the Torriani Award.