The eighth season of the American television sitcom series It's Always Sunny in Philadelphia premiered on FX on October 11, 2012.

The season consists of 10 episodes, and concluded airing on December 20, 2012.

[1] The eighth season received positive reviews.

On Rotten Tomatoes, it has an approval rating of 100% with an average score of 7.4 out of 10 based on 14 reviews.

The website's critical consensus reads, "Always Sunny's eighth season, holding no greater ambition than to just let the Gang humiliate themselves through a succession of depraved hijinks, excels at its goal with gut-busting results.