RTCA

RTCA or rTCA may refer to:

• Radio Technical Commission for Aeronautics, an organisation that develops aviation standards
• Rio Tinto Coal Australia, an Australian coal mining company
• Radio and Television Correspondents Association, an organization for political reporters in Washington, D.C.
• Reverse tricarboxylic acid cycle, a biochemical cycle occurring in some bacteria and archaea
• The Rivers, Trails and Conservation Assistance Program of the US National Park Service