Seaton Ross is a village and civil parish in the East Riding of Yorkshire, England. It is situated approximately 6 miles (9.7 km) west of the town of Market Weighton and 3 miles (4.8 km) north-west of the village of Holme-on-Spalding-Moor. It lies to the south of the A1079 road and north of the A163 road. According to the 2011 UK census, Seaton Ross parish had a population of 565, an increase on the 2001 UK census figure of 545.
In 1974 most of what had been the East Riding of Yorkshire was joined with the northern part of Lincolnshire to became a new English county named Humberside. The urban and rural districts of the former counties were abolished and Humberside was divided into non-metropolitan districts. The new organization did not meet with the pleasure of the local citizenry and Humberside was wound up in 1996. The area north of the River Humber was separated into two "unitary authorities"—Kingston-upon-Hull covering the former City of Hull and its closest environs, and the less urban section which, once again, named itself the East Riding of Yorkshire.