Night Shift - A barbershop quartet from southeastern Michigan. - http://www.harmonize.com/NightShift/
NeXus Quartet - A Denver Colorado based a cappella quartet that sings a variety of music, including barbershop, jazz, pop, gospel, and swing. They are also competitors in the Barbershop Harmony Society, SPEBSQSA. - http://www.nexusqt.com/
Nightlife - 1996 International Quartet Champions from Los Angeles, California. - http://www.nightlifequartet.com/
Nightwatch - Comedy quartet from Milwaukee, Wisconsin. Schedule, booking and contact information, a picture gallery and general background information. - http://www.execpc.com/~hettig/Default.htm
Northland Gold - A quartet from St. Paul, Minnesota that began as a way to demonstrate that barbershop administrators can sing and ring chords too. - http://www.arneberg.com/bbshop/nlgold
Noise Boys - Quartet from Stockholm, Sweden formed by three baritones and one lead singer at the SNOBS' Fall Convention in Falun in 1995. - http://home.swipnet.se/vocal_vikings/noiseeng.htm