Ervine Pyrah Mosby[4] (October 1877 – October 1916), also referred to as Irving Mosby,[5] was an English professional rugby league footballer who played between 1901 and 1911.

[7][8] Mosby was born in Normanton, West Riding of Yorkshire, England, and he died aged 38 in Bradford, West Riding of Yorkshire, England.

[9] Mosby won a cap for England while at Bradford FC in 1905 against Other Nationalities.

Mosby played right-centre and scored a goal in Bradford FC's 5-0 victory over Salford in the Championship tiebreaker during the 1903–04 season at Thrum Hall, Halifax on Thursday 28 April 1904, in front of a crowd of 12,000.

[10][11] Mosby played in Bradford FC's 8-5 victory over Hull Kingston Rovers in the 1906 Yorkshire Cup Final at Belle Vue, Wakefield on Saturday 1 December 1906.