Siham is a feminine given name that may refer to:
- Siham Alawami, Qatari television journalist and producer
- Siham Mousa Hamoud Jabr Al Moussawi, Iraqi politician
- Siham Daoud Anglo, Sudanese activist
- Siham Bayyumi, Egyptian writer and journalist
- Siham Benchekroun, Moroccan novelist and poet
- Siham Boukhami, Moroccan football defender
- Siham Es Sad, Moroccan cylist
- Siham Hashi, member of the Canadian Pop/R&B musical duo Faarrow
- Siham Hilali, Moroccan middle-distance runner
- Siham Sergiwa, a Libyan psychologist and politician