Herbert "Kat" Cowans or Cowens (May 24, 1904 – January 23, 1993) was an American jazz drummer born in Texas.
After moving to Wichita Falls, he played in Frenchy's New Orleans Jazz Band, then worked with Charlie Dixon.
Following this, he did work with the Kansas City Blackbirds, Jimmy Cooper's Black and White Revue, and Eubie Blake in addition to leading his own band (which included Sylvester Lewis among its members).
In the 1930s Cowans played with Fats Waller and Stuff Smith, and joined Eddie Heywood's band for recordings behind Billie Holiday in 1941.
He worked with Garvin Bushell in 1942, then played in the pit orchestra for the Broadway show The Pirate.