Cowboy Ghosts are enemies found in the Western Station in Gex 3: Deep Cover Gecko. They attack by firing their pistols at Gex. Like the Poachers, they will say things when shooting at Gex ("Yeehaw!") and when he attacks them ("Ya varmint!").
Cowboy ghosts are known as some of the hardest enemies in the series, due to the unpredictable nature of their appearance.