The name is a contracted form of the Old Norse, Sigrid.
The name has been used as an independent given name since at least the 18th-century. As of 2011, its Finnish form of Siiri 9th most popular female name in Finland. While in 2010, she was the 57th most popular female name in Sweden.
Other forms of the name include:
- Siria (Danish/Swedish)
- Siiri (Estonian/Finnish)
- Siru (Finnish/Sami)
- Sire (Sami)
- Siri (Scandinavian)