Sioned is a Welsh feminine given name. It may refer to:
Sioned Harries (born 1989), Welsh rugby union player Sioned James (1974–2016), Welsh musician and choir conductor Sioned Wiliam (born 1962), Welsh comedy producer and executive Sioned Williams, Welsh politician
In fiction Sioned the Sunrunner, a main character from Melanie Raun's Dragon Prince and Dragon Star trilogies Protagonist and narrator of the novel Sioned by Sarah Winifred Parry (1870–1953)
See also Sione, an unrelated Oceanic-origin name with a similar spelling Janet (given name)