This is a list of all the episodes in Timmy's Treehouse of Horror Series.
- Timmy's Treehouse of Horror
- Timmy's Treehouse of Horror II
- Timmy's Treehouse of Horror III
- Timmy's Treehouse of Horror IV
- Timmy's Treehouse of Horror V
- Timmy's Treehouse of Horror VI
- Timmy's Treehouse of Horror VII
- Timmy's Treehouse of Horror VIII
- Timmy's Treehouse of Horror IX
- Timmy's Treehouse of Horror X
- Timmy's Treehouse of Horror XI
- Timmy's Treehouse of Horror XII
- Timmy's Treehouse of Horror XIII
- Timmy's Treehouse of Horror XIV
- Timmy's Treehouse of Horror XV
- Timmy's Treehouse of Horror XVI
- Timmy's Treehouse of Horror XVII
- Timmy's Treehouse of Horror XVIII
- Timmy's Treehouse of Horror XIX
- Timmy's Treehouse of Horror XX
- Timmy's Treehouse of Horror XXI
- Timmy's Treehouse of Horror XXII
- Timmy's Treehouse of Horror XXIII