Is GTA: San Andreas on PSP?

No. Grand Theft Auto: San Andreas was never officially released on PSP.

PSP GTA Titles

• GTA: Liberty City Stories (2005) – Prequel to III, Liberty City.
• GTA: Vice City Stories (2006) – Prequel to VC, Vice City.

Both built on the GTA III engine, optimized for PSP. Excellent ports.

San Andreas on Portable

• iOS / Android: Full port (2013/2014). Touch controls or controller support. Best portable version.
• PS Vita: Via PS3 remote play (laggy) or GTA: SA PS2 Classics on PS3 → Remote Play. No native Vita port.
• Switch: GTA: The Trilogy – Definitive Edition (2021) includes SA. Mixed reception; patches improved.

Homebrew: CFW PSP can run GTA: SA via GTA: SA Mobile port wrapper (experimental, buggy) or stream via Moonlight/Sunshine from PC. Not recommended.