Saum may refer to:
- Remington Short Action Ultra Magnum rifle cartridges, also known as RSAUM, and RSUM, available in two calibers:
- Sawm, an Arabic word for fasting regulated by Islamic jurisprudence
- Saum, Minnesota, United States, an unincorporated community
- Roland Saum, former guitarist for the Swiss band Sportsguitar
- Sherri Saum, American actress