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Contact Us

For general inquiries please send an email to clubservices@cosmosclub.org.

Cosmos Club
2121 Massachusetts Avenue, NW
Washington, DC 20008
Phone: (202) 387-7783
Fax: (202) 234-6817

Front Desk
Overnight Rooms/Guest Inquiries
Phone: (202) 387-7783
Email: frontdesk@cosmosclub.org

Member Services
Dining & Club Events Reservations
Phone: (202) 797-6443
Email: memberservices@cosmosclub.org