Troilus is a legendary Trojan whose fate is linked to that of Troy in the Trojan War.
Troilus may also refer to: Troilus of Elis (4th century BC), Greek athlete Troilus (philosopher), a sophist of the 4-5th century in Constantinople Troïlus de Mesgouez (1536–1606), a French noble (Marquis de La Roche-Helgomarche) and Viceroy of New France USS Troilus (AKA-46), an Artemis class attack cargo ship Troilus (bug), a genus of bugs in the family Pentatomidae 1208 Troilus, an asteroid Lake Troilus, a lake in Quebec Troilus and Cressida, a play by William Shakespeare