Washington: Mintwood Zendo - A Zen meditation group serving the Gay/Lesbian/Bisexual/Transgendered community in Washington, DC. - http://www.mintwoodzendo.org/
DC Zen Centers - Complete list of Zen centers in DC, including those without websites. Maintained by the International Research Institute for Zen Buddhism. - http://iriz.hanazono.ac.jp/zen_centers/centers_data/usaAG.htm#DISTRICT%20OF%20COLUMBIA
Washington Mindfulness Community - A group inspired by Thich Nhat Hanh, a contemporary Vietnamese Zen Master, peace activist, and writer. Offers several mindfulness practice sitting groups in the Washington area. - http://www.mindfulnessdc.org/
Dae Do Sah -- Temple of the Great Way - Zen meditation group serving the Washington, D.C. metropolitan area. Our Guiding Teacher is Zen Master Dae Gak of Furnace Mountain, who has students around the U.S., as well as Europe and Australia. Kwan Um School of Zen, Chogye Order. - http://www.zenmind.org