Pablo Samuel Eisenberg (July 1, 1932 – October 18, 2022) was an American scholar, social justice advocate, and tennis player.

He played in Wimbledon five times, making the quarterfinals once, and won a gold medal at the 1953 Maccabiah Games in Israel.

[1] He received a German Marshall Fund fellowship in 1989 to study the nonprofit sectors in Great Britain, the Netherlands, and France.

[2] After leaving OEO, he served as deputy director for field operations at the National Urban Coalition.

His book, Challenges for Nonprofits and Philanthropy: The Courage to Change, was published by the New England Press and Tufts University in December 2004.

He served on the boards of Youth Today, Eureka Communities, the Milton Eisenhower Foundation, ICChange and the University College of Citizenship and Public Service at Tufts University, and New Faculty Majority Foundation, and was a trustee of Citizen Funds.

[4] He played in Wimbledon five times, making the quarterfinals in doubles alongside John "Buddy" Ager in 1955.