Updated June 9, 2019 Share: Boy name origins & meanings Welsh : From the headland; rocky hill Boy name variations Pembrok Pembrok 0 % this year Masculine Rare Find out more Pembrook Pembrook 0 % this year Masculine Rare Find out more Family name origins & meanings Welsh : habitational name from Pembroke (Welsh Penfro) in South Wales. The surname has been established in Ireland since at least the 17th century.