The Monongahela River Consolidated Coal and Coke Company was a railroad and coal transportation company, founded in 1899 in Pittsburgh, Pennsylvania. It was formed by merging more than 80 independent coal mines and river transportation businesses, both in Pennsylvania and Kentucky. Initially, it had an agreement with the Pittsburgh Coal Company to ship its coal only by water, and not to compete with it by using rail transport, but the agreement was ended in 1902. It merged with the Pittsburgh Coal Company on 24 December 1915.