Clarence Munroe Clark (August 27, 1859 – June 29, 1937) was an American financier who helped develop electric light, power, and streetcar companies, as well as a noted tennis player.

That same year, he won the first doubles tournament in the U.S. National Championships (later called the U.S. Open), playing with Frederick Winslow Taylor, after defeating first the favored Richard Sears/James Dwight, and in the final round, Alexander Van Rensselaer/Arthur Newbold.

In 1882, he reached the final of the championships, where he lost to reigning champion Sears in straight sets.

He married the sister of his doubles partner, Taylor, who would go on to a noted career as an engineer and organizational theorist.

Clark shares a burial plot in the River section of West Laurel Hill Cemetery in Bala Cynwyd, PA, with his brother-in-law Frederick Winslow Taylor.