Bystander
- Year: 2022
- Country: Thailand
- Genre: Horror, Thriller, Fantasy
- Studio: One Shot Pictures
- Keyword: slasher
- Director: Setsawat Thongsrikum
- Cast: Varunya Choopanya, Nutthanicha Srithong, Pornnutcha Sonthimettaporn, Nontouch Ratanapongbandit, Sarocha Nuttakul, Jintawat Chuayen