Dubuque Music Men
- Barbershop chorus that provides a cappella entertainment all over the Dubuque area.
- http://www.musicmen.org/

The Denison Hilltoppers
- An all-male Acapella group at Denison University in Granville, Ohio.
- http://www.denisonhilltoppers.org

Denver MountainAires Barbershop Chorus
- A non competitive men's barbershop chorus from Denver Colorado.
- http://www.mountainaires.com

Denver Tech
- Sound of the Rockies chorus from Denver Colorado.
- http://soundoftherockies.com/

Dukes of Harmony
- 1977 and '80 International Champions from Scarborough, Ontario Canada.
- http://home.ca.inter.net/~dukes/

Dixie Cottonboll Chorus
- 1958 International Champions from Memphis, Tenesee.
- http://www.harmonize.com/CottonBollChorus/

Duke City Chorus
- The Bernalillo County chapter of SPEBSQSA based in Albuquerque, New Mexico.
- http://www.dukecitychorus.com/

Downeasters
- The Portland, Maine chapter of the Society for the Preservation and Encouragement of Barbershop Quartet Singing in America.
- http://www.downeasters.org/

Diamond State Chorus
- SPEBSQSA chapter from Little Rock, Arkansas
- http://swd.org/arkdsc/

Dunn County Chapter
- Singers from around the Chippewa Valley -- Dunn, Chippewa, and Eau Claire Counties.
- http://arneberg.com/bbshop/dunnco/

Detroit-Oakland Chapter - SPEBSQSA
- originally under the Detroit #1 chapter name. Several years ago, the Detroit #1 chapter Merged with the Oakland County chapter to form one larger and stronger group. The Gentlemen Songsters Chorus is the outgrowth of that merger.
- http://www.harmonize.com/doc/doc.htm

Diplomats of Harmony
- Eau Claire, Wisconsin chapter SPEBSQSA
- http://www.arneberg.com/bbshop/eauclaire/

Delta Kings Chorus
- The main performing unit of the Cincinnati chapter of SPEBSQSA.
- http://www.deltakings.org