Grover Glenn Norquist (born October 19, 1956) is president of anti-tax lobbying group Americans for Tax Reform.

Norquist, who is of Swedish descent, grew up in Weston, Massachusetts and has a BA and MBA from Harvard University. After leaving professional school, Norquist became executive director of both the National Taxpayers Union and the national College Republicans organization, holding both positions until 1983.

Norquist founded Americans for Tax Reform in 1985, at the request of President Ronald Reagan, and has headed the organization ever since. From 1985 to 1988, Norquist was also an economic advisor to Angola UNITA leader Jonas Savimbi. During this period, he was registered with the United States Department of Justice as a foreign agent of Angola.