If you love comedy, then you need to know about some of the best stand up comedians. The following listing of the best stand up comedians includes some past and present favorites who have made millions of people laugh for their off-beat sense of humor and great quotable dialog. Get ready for some big laughs as we count down some of the best stand up comedians of all time.

Mitch Hedberg.

Known for his nonsensical humor, Mitch Hedberg is a fan favorite who can make almost anybody laugh. He's one of the best stand up comedians because many of his jokes come out of complete nowhere yet seem to touch on almost every single part of everyday life. Unfortunately, Mitch passed away on March 29, 2009, but he'll always be remember as one of the best stand up comedians of this generation.

Dave Attell.

The hose of the short-lived "Insomniac" television show, he got his start as becoming one of the best stand up comedians from New York. His jokes tend to revolve around his hobbies, and his hobbies tend to revolve around getting outrageously drunk and having sex with random strangers. While it might seem low-brow for some, he's really one of the funniest stand up comedians ever for his completely unapologetic approach towards anything and everything.

Denis Leary.

The man who became America's biggest asshole, he's one of the best stand up comedians to make it in Hollywood. His trademark sense of humor is loved by millions, even though most of his jokes involve demeaning his audience and other people as much as humanly possible. Always having a fresh outlook on life, he's currently working for the hit TV drama "Rescue Me."

Aziz Ansari.

With roles in movies like "Funny People" and "Observe and Report," this Indian comedian is quickly becoming one of the best stand up comedians ever. His humor lies in his take on everyday situations and rarely ever hinges on his race, though when he talks about being an Indian in Hollywood, he never uses it as a crutch. Always irreverent, he's one of the best stand up comedians for those who might not listen to a lot of this brand of comedic performance.