The Kefefs (Greek: Κηφεύς) or Kifefs, Kefeus is a Greek-made bolt-action sniper rifle designed by Hellenic Arms Industry in 1986 and named after an ancient mythical king.

The Kefefs fires rounds chambered in 7.62×51mm NATO.

The Kefefs rifle contains the following features: The weapon is supplied with a bipod (having a quick release mechanism), a carrying sling and a complete field-service kit.

There are two variants of the Kefefs: