Daniel Kosa was a Starfleet chief medical officer who served in Starfleet in the 24th century.

By 2376, Kosa was serving aboard the USS Exeter as chief medical officer. A pure-blooded Sioux, Kosa was tall, jowly and gray-haired. He was notoriously known for muttering his catchphrase "no respect" while giving physical examinations and treating illnesses and injuries, and often for no reason at all. (NF - Excalibur novel: Restoration)

Dr. Kosa is named for native New Jersey film actor and commercial voice over artist Daniel Kosa, who is of Cherokee decent, tall and somewhat gray-haired, but not in the least bit jowly.^{[citation needed]}

USS Exeter personnel
USS Exeter (NCC-1672)	Andreoni • Carter • B. Mendez • D. Newman • K. Riley • R. Tracey
USS Exeter (NCC-1712)	Pérez • Stephanoff • Stockdale • L.H. Styles
USS Exeter (NCC-26531)	L. Ap'Bolan • T. Augustine • N. Basner • K. Clark • C. Carroll • C. Dunn • A. Garbeck • Hodgkiss • K. Jutkiewicz • K. Kahn • D. Kosa • T. Lamb • A. Lee • M. MacGibbon • A. MacMurrian • Mankowski • T. Paris • E. Shelby • C. Tulley • James Venes • G.S. Wagner • P. Wynats • S. Wynats