Loja may refer to:
- Loja, Granada, Spain
- Loja Province, Ecuador
- Loja Canton, Ecuador
- Loja, Ecuador, capital of Loja province
- Loja, Latvia, capital of Sēja municipality
- Loja, Estonia, village in Pühalepa Parish, Hiiu County, Estonia
- Loja (crater), a crater on Mars named after the Ecuadorian city
- "Loja" (The Game), a novel written by Teodor Keko, the 20th century Albanian writer