Jeff 'Yak' Minter is an independent British video game designer and programmer. He is the founder of software house Llamasoft and has created dozens of games during his career.

Minter's games are often arcade style shoot 'em ups. They often contain titular or in-game references demonstrating his fondness of ruminants (llamas, sheep, camels, etc.). Many of his programs also feature something of a psychedelic element, as in some of the earliest "light synthesizer" programs including his Trip-a-Tron.

Minter's works include Neon (2004), a non-game music visualisation program that has been built into the Xbox 360 console, and the video games Space Giraffe (Xbox Live Arcade, 2007 and PC, 2008), and Space Invaders Extreme (Xbox Live Arcade, May 2009).