Rhianna is a feminine name and a variation of the Welsh name Rhiannon. Notable people with the name include:
- Rhianna (singer) (born 1983), British singer
- Rhianna Atwood, contestant on America's Next Top Model in 2010
- Rhianna Patrick (born 1977), Australian radio presenter
- Rhianna Pratchett (born 1976), English video game scriptwriter
See also
- Rhiana Griffith (born 1985), Australian actress and model
- Rhiana Gunn-Wright (born 1988), American political scientist
- Rhiannon (given name)
- Riana § People with the given name Riana
- Rihanna (born 1988), Barbadian singer