Ruy Teixeira /ˈruː.i təˈʃɛrə/ (born December 15, 1951) is an American political scientist and commentator who has written several books on various topics in political science and political strategy. He is most noted for his work on political demography, and particularly for The Emerging Democratic Majority (2002), which he wrote with John Judis, a book arguing that Democrats in the United States are demographically destined to become a majority party in the early 21st century. He writes and edits the weblog The Democratic Strategist.
Teixeira was born in Washington, D.C.. His parents were Marie Overmeyer Teixeira and Bernardo. He has one older sibling, Diogo Teixeira, a businessman, and one younger half-brother, Bernardo de Albergaria, a marketing executive. Teixeira's parents were divorced when he was quite young, and he grew up strongly influenced by his mother, who was an artist, painter, and teacher.
Teixeira skipped a grade in junior high and graduated from Bethesda Chevy Chase High School at the age of 16. After high school, he attended Yale College and the University of Michigan at Ann Arbor, from which he received his B.A. (1977). Later, he received his M.S. and Ph. D. (1984) in Sociology from the University of Wisconsin at Madison, where he did his dissertation on declining voter turnout.