Sylvius Gerard Marie "Boy" Rozendal (4 July 1928 – 10 June 2003) was an Curaçao politician and journalist. He served as Prime Minister of the Netherlands Antilles from 1971 until 1975, Minister of Finance and Deputy Prime Minister from 1969 until 1971, and Minister Plenipotentiary of the Netherlands Antilles from 1971 until 1975.