Mosaic Stadium at Taylor Field, Football stadium in Regina, Canada

Mosaic Stadium at Taylor Field was an open-air Canadian football stadium in Regina's North Central area, owned by the city. It began as the rugby field Park Hughes in 1910, was combined with the neighbouring baseball Park de Young in 1928, and gained a permanent 5,000-seat concrete grandstand in 1936. A second grandstand in 1966 made it football-only, and a west upper deck in 1978–79 brought capacity to 27,606, later listed at 32,848.

A rugby field called Park Hughes was built on the site in 1910, and the Regina Rugby Club played its first game there on October 15, 1921. In 1928 the neighbouring Park de Young baseball ground was merged with it, and in 1936 a permanent 5,000-seat concrete grandstand brought the Roughriders in full-time. Renamed Taylor Field in 1947 for Neil J. "Piffles" Taylor, it gained a second grandstand in 1966, an upper west deck in 1979 and artificial turf, and closed after the 2016 season; demolition ran from September to October 27, 2017.

The Roughriders took their nickname in 1924 from a unit at the RCMP barracks, where men broke in wild broncos for the force; the team had sometimes played there when rain flooded Park Hughes. The name Neil J. "Piffles" Taylor, added to the field in 1947, honours a one-eyed First World War pilot and prisoner of war who played and coached football in Regina and later presided over the club.

The stadium stood in Regina's North Central neighbourhood, just north of the railway lines that cross the city, with Park Hughes on the site and Park de Young beside it to the east. The city of Regina owned and managed it, and the playing surface was artificial turf from 1979 onward. Demolition ran from September 2017 to October 27, 2017, after which the site was slated for mixed-use development.

The playing surface kept the name Taylor Field even after the stadium became Mosaic Stadium in 2006, when the Roughriders signed a ten-year, $3.75 million naming deal with The Mosaic Company, a potash producer with mines in Saskatchewan. The stadium itself was renamed; the field was not.