Lorcan () is a male given name, meaning 'little fierce one', and may refer to:
- Lorcan Allen (born 1940), Irish farmer and former Fianna Fáil Teachta Dála TD
- Lorcan Cranitch (born 1959), Irish actor
- Lorcan Dempsey (born 1958), the Vice President and Chief Strategist of the Online Computer Library Center (OCLC)
- Lorcán mac Cellaig (flourished 848), King of Leinster of the UàMuiredaig sept of the UàDúnlainge branch of the Laigin
- Lorcán mac Fáelán, the seventh of ten Kings of Leinster to be inaugurated and based on Lyons Hill, Ardclough, County Kildare
- Lorcán àMuireadais (1883âÂÂ1941), Irish Roman Catholic priest, Irish language educator and nationalist activist
- Lorcan O'Herlihy (born 1959), architect
- Lorcán Ua Tuathail (1128âÂÂ1180), Saint Laurence O'Toole, canonized in 1225 by Pope Honorius III
See also