This is a complete list of episodes for the Japanese anime series Yu-Gi-Oh! Duel Monsters GX (changed to simply Yu-Gi-Oh! GX in the 4Kids dub, due to the previous anime not using "Duel Monsters" in the title), based on the Yu-Gi-Oh! Duel Monsters anime.
There are four different music themes set accompanying the opening animation and ending credits. For episodes 1-33, they are Rising Weather Hallelujah for the opening animation and Genkai Battle for the ending credits. From episode 34 through to episode 104 they are 99% and WAKE UP YOUR HEART respectively, episodes 105-156 contained Teardrop and The Sun, and for the final episodes, 157 to 180, they were Precious Time, Glory Days and Endless Dream. When dubbed into English they were all replaced by the same song, Get Your Game On!!, by 4Kids Entertainment. The final episode of the third season, as well as the entire fourth season, were not dubbed into English by 4Kids, due to the pressure to begin airing Yu-Gi-Oh! 5D's before the end of 2008.