Online Film Critics Society Award for Best Breakthrough Performance

The Online Film Critics Society Award for Best Breakthrough Performance is an annual film award given by the Online Film Critics Society to honor the best breakthrough performance of the year.

Winners

for her role as "Selma Jezkova" in Dancer in the Dark
for her role as "Betty Elms/Diane Selwyn" in Mulholland Drive
for her role as "Lee Holloway" in Secretary
for her role as "Paikea" in Whale Rider
for her role as "María Álvarez" in Maria Full of Grace
for his role as "Frank Berkman" in The Squid and the Whale
for his role as "Borat Sagdiyev" in Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan
for her role as "Tracy Turnblad" in Hairspray
for her role as "Eli" in Let the Right One In
for her roles as "Mrs. O' Brien" in The Tree of Life , "Celia Foote" in The Help , and "Rachel Singer" in The Debt