Online Film Critics Society Award for Best Supporting Actor 

The Online Film Critics Society Award for Best Supporting Actor is an annual film award given by the Online Film Critics Society to honor the best supporting actor of the year.

Winners

1990s

for his role as "Jack Horner" in Boogie Nights
for his role as "Jacob Mitchell" in A Simple Plan
for his role as "Cole Sear" in The Sixth Sense

2000s

for his role as "Javier Rodriguez" in Traffic
for his role as "Lester Bangs" in Almost Famous
for his role as "Seymour" in Ghost World
for his role as "Frank Whitaker" in Far From Heaven
for his role as "Chuck Lane" in Shattered Glass
for his role as "Jack" in Sideways
for his role as "Marv" in Sin City
for his role as "Ronnie J. McGorvey" in Little Children
for his role as "Anton Chigurh" in No Country for Old Men