WSIL may refer to:

• WSIL-TV, a television station based in Harrisburg, Illinois.
• Web Services in Learning (WSIL), a forum for vendors in the eLearning space to jointly propose/develop a library of standard web services.
• Web Services Inspection Language, a specification for discovery of web services

• Mark Farrell (disambiguation)
• Mark Feldman (disambiguation)
• Mark fell (artist)
• Mark Fell (artist)
• Mark Felton
• Mark Felton (Author and Historian)
• Mark Felt: The Man Who Brought Down the White House
• Mark Fenster
• Mark Fenwick
• Mark Ferguson (cricketer)
• Mark Ferrante
• Mark Ferreira
• Markfield Park
• Markfield Road pumping station
• Mark Finchem
• Mark Finkell
• Mark Fischbach
• Mark Fischer
• Mark Fischer (disambiguation)
• Mark Fishbach
• Mark Fisher (Matt Bianco)
• Mark Fisher (musician)
• Mark Fisher (writer)
• Mark Fitzgerald (disambiguation)
• Mark Flanagan (boxer)