Bishop Arthur George Riddell (born 15 September 1836, York – died 1907, England, UK) was the Roman Catholic Bishop of Northampton from 1880 until his death in 1907.

On 24 September 1858, aged 22, he was ordained a priest for the Diocese of Beverley at Ushaw in County Durham^[1] by Bishops Robert Cornthwaite, Francis Kerril Amherst and Richard Lacy.

On 27 April 1880, aged 43, he was appointed as Bishop of Northampton and ordained two months later on 9 June 1880.^[1]

He died in 1907, aged 71. He had been a priest for 49 years and a bishop for 27 years. Riddell is buried at The Cathedral Church of St Mary and St Thomas.^[1]