Sheehan

Sheehan is a boy’s name and surname of Irish origin meaning “the peaceful one.” It’s an anglicization of the surname Ó Síodhacháin, which derives from the Irish word síodhach, meaning “peaceful.” Giving baby this name could be a lovely way to express your wish that they’ll always be able to find inner calm and serenity. A famous bearer is Irish actor Robert Sheehan.