C85

C85 may refer to :

• Ruy Lopez chess openings ECO code
• Other and unspecified types of non-Hodgkin's lymphoma ICD-10 code
• Labour Inspectorates (Non-Metropolitan Territories) Convention, 1947 code
• Continental C85, a 1944 engine
• C-85 Orion, a 1931 aircraft based on the Lockheed Model 9 Orion
• {{ship|ARM|Juan Aldama|C85}}, a Mexican Navy ship, an Auk-class minesweeper originating in WWII
• C85, a Draft for Standard C programming language released in 1985 for ANSI C
• Caldwell 85 (IC 2391, the Omicron Velorum Cluster), an open cluster in the constellation Vela
• 85th Comiket