All Killer No Filler is the debut studio album[A] by Canadian rock band Sum 41, released on May 8, 2001.

[8] Sum 41's vocalist/rhythm guitarist Deryck Whibley cites Rancid, Elvis Costello, the Beatles, and Pennywise as influences on All Killer No Filler.

"[10] Absolutepunk described the album as "the album that your parents don't want you to discover at age 11 when you're just starting to think that school is bullshit and the only thing that really matters is that ridiculously cute girl who honestly treats you like shit", as well as adding "The lyrics are broad enough that everyone can relate to them, but specific enough that each song makes you think of a certain person or situation in your life.

[16] In October, the band embarked on a headlining US tour, with support from Unwritten Law and Gob.

[18] In April 2002, the band went on a tour of the east coast US and Canada territories, with support from H2O, and Autopilot Off.

[20] On April 6, 2011, a special edition of the album was released to celebrate the 10th anniversary of All Killer No Filler, exclusive to Japan.

[21] From the initial success of the album, Deryck Whibley stated that it led him to "immediate embarrassment" stating that "I've always felt it wasn't that great, if I'm being honest," and "I never quite understood - to a point where it's almost like, when people tell me it means a lot to them or it was a really good album compared to other records, I always think they're lying."

AllMusic said "It would be a mistake to view Sum 41 as just another second-rate band cashing in on the early-'00s punk-pop boom, even if it did recruit Jerry Finn to produce All Killer No Filler."