Koei Tecmo Holdings Co., Ltd. is a holding company created in 2009 by the merger of Japanese video game companies Koei and Tecmo. It was founded as Tecmo Koei Holdings.

In April 2009 Koei Europe was the first subsidiary to change its name (to Tecmo Koei Europe, Ltd) and to release video games under the new moniker.
In January 2010, Tecmo, Inc. and Koei Corporation followed suit by merging to form Tecmo Koei America Corporation.

On April 1, 2010, Tecmo was declared disbanded in Japan. Its sister company Koei survived but was renamed Tecmo Koei Games and is now the sole publishing arm of the group.

On July 1, 2014, the company was renamed as Koei Tecmo.