What does the name Siobhan mean? The meaning of the name Siobhan is God Is Gracious. The origin of the name Siobhan is Irish. This is the culture in which the name originated, or in the case of a word, the language.
Alternate spellings: Shavon
People who like the name Siobhan also like: Charlotte
, Genevieve Liam
Name Notes: form of Joan. Pronounced "Shih-VON" or "Shih-WAN."