138

By regional Pokédex number, 138 may refer to:

• #138 Omanyte, in the National and Kanto Pokédex
• #138 Psyduck, in the Johto Pokédex
• #138 Jigglypuff, in the Hoenn Pokédex
• #138 Feebas, in the Sinnoh Pokédex

By browser number, 138 may refer to:

• R-138 Slugma, in the Fiore Browser
• R-138 Charmeleon, in the Almia Browser

In the Pokémon anime series, 138 may refer to:

• The Superhero Secret, episode 138 of the original series
• Rough, Tough Jigglypuff, episode 138 of the Advanced Generation series
• DP138, episode 138 of the Diamond & Pearl series

In the Pokémon manga, 138 may refer to:

• Raikou & Entei (Part 2), round 138 in the Gold, Silver & Crystal arc of Pokémon Special