The St. Mark's Parish Church in Denver, Colorado is a historic Episcopal church at 1160 Lincoln Street. It was built in 1889 and was added to the National Register of Historic Places in 1975.
It was designed by architects Lang & Pugh. Up to the early 1950s the church "boasted a castellated tower and turret at the front entry. Due to structural problems the upper story of the tower fell: the turret suffered extensive damage and was removed, with a buttress added in its place for support and aesthetic balance. The architects were Lang and Pugh. Lang was a celebrated architect of the eclectic style in Denver."