Domenic Michele Antonio Troiano (January 17, 1946 – May 25, 2005) was an Italian–Canadian guitarist and songwriter, best known as a member of Mandala, Bush, James Gang, and The Guess Who.

He also recorded music for film and television, often made guest appearances on other musicians' albums, and worked as a producer.

This band also found success in Canada and toured the United States; Three Dog Night recorded one of their songs.

Troiano then announced a solo album,[2] but before it was completed he joined James Gang in 1972, replacing Joe Walsh.

[11] Troiano next joined The Guess Who in 1974,[2] replacing departed guitarists Kurt Winter and Donnie McDougall, and becoming one of the group's primary songwriters in conjunction with leader Burton Cummings.

He appeared on the albums Flavours and Power in the Music, which were noted for moving The Guess Who into jazz rock due to Troiano's songwriting influence.