Litleo evolves into Pyroar starting at level 35.

Details and quick guide

• Evolution level: Level 35
• Evolution target: Pyroar
• Alternate notes: Some sources also mention that Litleo can be powered up with experience and items (e.g., EXP candies or Rare Candies in various games) to reach level 35 more quickly, but the core requirement is reaching level 35 to evolve.

If you’re playing a specific game (main series, Pokémon GO, or a spin-off), I can tailor steps to that version, such as recommended ways to level up to 35 efficiently.