Girl name origins & meanings
- Gaelic : Beautiful and graceful
Boy name origins & meanings
- Gaelic : Little and slender
- Irish : Tiny, slender
Family name origins & meanings
- Irish : reduced form of Keelahan, an Anglicized form of Gaelic Ó Céileacháin, from céileachán, a diminutive of céile ‘companion’.
- Welsh : habitational name for someone from any of various townships called Cilan, especially one in Llanfair Dyffryn Clwyd, Denbighshire.