Ernest Blakelock Thubron, also known as Émile Thubron (Boldon near Durham 15 July 1861 - 22 May 1927 Tokomaru, New Zealand) was an Anglo-French motorboat racer and Olympic champion.He won the second running of the Harmsworth Trophy for motor powered boats in 1904 in Trefle-à -quatre.
In 1898 Ernest Blakelock Thubron was managing Owner of the Boulac Engine Works, Cairo and in 1906 he was still working as a boat constructor in Egypt.He competed with his boat Camille in Class A (the open class) at the 1908 Summer Olympics in London, where he won the gold medal.
He finished the forty nautical miles in 2:26:53, and Camille was the only boat to finish that race.
He retired to New Zealand.
His son was Brigadier Gerald Thubron, OBE and his grandson Colin Thubron the writer.