WTA

WTA may refer to:

• World Trampolining Association, Founded in 1866 following the founding of the Amateur Athletics Association in 1864.
• War of the Triple Alliance, a war between Paraguay and the alliance of Argentina, Brazil and Uruguay
• San Francisco Bay Area Water Emergency Transportation Authority, formerly the San Francisco Bay Water Transit Authority, a government ferry agency in the San Francisco Bay Area, California
• Werewolf: The Apocalypse - a role-playing game published by White Wolf
• Whatcom Transportation Authority, a bus agency in Washington State, USA
• Wichita Terminal Association, a railroad
• Wilco (The Album), an album by Wilco
• Women's Tennis Association
• World Transhumanist Association, former name of Humanity+, a non-profit advocacy organization
• Waskahegan Trail Association, the management board for the Waskahegan Trail
• Willingness to accept
• Winner takes all