The longest one I can think of is Watashi ga Motenai no wa dō Kangaetemo Omaera ga Warui! atau No Matter How I Look at It, It’s anda Guys' Fault I’m Not Popular! lebih commonly known as WataMote!
Kochira Katsushika-ku Kameari Kōen Mae Hashutsujo. In English, "This is the police station in front of Kameari Park in Katsushika Ward" It's shortened to Kochikame.