Sheriff Hill Colliery or Ellison Main Colliery was a coal mine at Gateshead Fell in County Durham, England. The colliery had two shafts and provided employment to the residents of Sheriff Hill, after it opened in 1793. There were many major accidents resulting in the deaths of workers at the colliery. There was a protracted strike at the colliery in 1834. The colliery closed in 1926.