Kenko Co., Ltd. (株式会社ケンコー, Kabushiki-gaisha Kenkō) is a Japanese manufacturer and trading company of photographic accessories, especially known for its teleconverters and filters.

It produces camera lenses under the Kenko[3] and Tokina brand names.

It also manufactures a beginner's 35 mm SLR camera (using the Nikon F-mount) under the Kenko name.

[citation needed] For current Kenko teleconverters and lens extension rings see List of Nikon compatible lenses with integrated autofocus-motor (note that Canon EF versions also exist).

This article about a Japanese corporation- or company-related topic is a stub.