A Japanese man drove a truck into a crowd of pedestrians in Akihabara, Tokyo, and proceeded to stab at least 12 people, killing 7 and wounding 10, before being apprehended.

The Akihabara massacre was an incident of mass murder that took place on 8 June 2008, in the Akihabara shopping quarter in Chiyoda, Tokyo, Japan. The perpetrator, 25-year-old Tomohiro Katō of Susono, Shizuoka, drove into a crowd with a rented truck, initially killing three people and injuring two. He then stabbed at least twelve people using a dagger, killing four and injuring eight.

Akihabara is a neighborhood in the Chiyoda ward of Tokyo, Japan, generally considered to be the area surrounding Akihabara Station. This area is part of the Sotokanda (外神田) and Kanda-Sakumachō districts of Chiyoda. There is an administrative district called Akihabara, located north of Akihabara Electric Town surrounding Akihabara Neribei Park.