"Scottish Forenames" (
Donald Whyte) says:
"
SIOBHAN (f) Gael. A rendering of
Judith which apears also as Siubhan, Shavon, Shavonn, Shervan and Shevonne. The phonetic mode is Sh'vaun. In
Ireland it is often an anglicised form of
Susan, and
Judith can be synonymous with
Julie.
Siobhan McKenna (1923-86) was a famous Irish actress. Today actress
Siobhan Redmond appears in many TV productions."
"Celtic Baby Names" (
Judy Sierra) says:
"Siobhán f. (shi-VAWN) From the
Norman French name, Jehanne, a feminine form of Jehan (the equivalent of the English
John). A nickname is Siobhánín (shi-VAWN-een)."
Regards,
Satu