Adapted from the manga of the same name, Sazae-san is by far the longest-running anime series of all time, with over 2500 episodes to date. Beginning in 1969, Sazae-san remains on the air each Sunday evening to this day.

Airing For 54 years Debuting in 1969 and still producing new episodes, the slice-of-life show Sazae-San is the longest-running anime series ever. It also holds the Guinness World Record for the longest-running animated TV series of all time, with 214 seasons and more than 8,500 episodes.

Naruto stood the test of time with 720+ episodes and significantly influenced modern shonen titles. One Piece, with 1090 episodes since 1999, remains one of the most iconic anime for dedicated fans worldwide. Sazae-San reigns supreme as the longest-running anime, airing since 1969 with over 2,640 episodes.

One Piece is one of the longest ongoing anime series, and though it started back in 1999, it remains a favorite to this day. With over 1,000 episodes currently available, watching all of this series feels like a daunting task for most.

Bleach contains some stand-out story arcs that help break up its 366 episodes. Though the franchise continues on into 2022 in the form of the sequel Bleach: Thousand-Year Blood War, its initial 16-season run from 2004 to 2012 secures it a place as one of the longest-running anime series.