Jailer (alternatively, Jailor) may refer to:

• Prison officer, sometimes known as "jailer"
• Jailor (1938 film), an Indian Hindi-language film
• Jailor (1958 film), an Indian Hindi-language film
• Jailer (2023 Tamil film), an Indian Tamil-language film by Nelson Dilipkumar
  • Jailer (soundtrack), of the film by Anirudh Ravichander
• Jailer (2023 Malayalam film), an Indian Malayalam-language film by Sakkir Madathil
• Jailor (Sholay), a fictional character played by Asrani in the 1975 classic Indian film Sholay