George Oscar Sylvester (14 September 1898 – 26 October 1961) was a Labour Party politician in England.

He was elected as Member of Parliament (MP) for Normanton in West Yorkshire at a by-election in 1947 following the resignation of the Labour MP Tom Smith.

Before going into politics, he was a miner.^[1] At the 1950 general election, he was returned for the neighbouring Pontefract constituency, and held the seat until he died in office aged 63. At the 1962 Pontefract by-election held after his death, the seat was held for Labour by Joe Harper.