Alejandro Villanueva is a former American football offensive tackle who played seven seasons in the National Football League (NFL). He played college football for the Army Black Knights and fulfilled his service commitment after graduation, where he reached the rank of captain. Villanueva also served in the Army Rangers, earning a Bronze Star.

After serving three tours of duty in Afghanistan, he signed a contract with the Philadelphia Eagles in 2014, but was waived prior to the season. He then signed with the Pittsburgh Steelers and played for them for six seasons until signing with the Baltimore Ravens in 2021 for his final season.

Villanueva has spoken publicly about the importance of his Catholic faith in his life and work. In November 2013, he married Madelyn Muldoon in a small ceremony in her parents' backyard. He met her through her brother, Joe Muldoon, with whom he played football at Army, and the two began dating in the spring of 2012. On May 9, 2015, Alejandro and Madelyn had a larger ceremony at the Jesus the Divine Word Catholic Church in Huntingtown, Maryland.

In the fall of 2015, Villanueva enrolled in Carnegie Mellon University's Tepper School of Business to earn a Master of Business Administration (MBA) degree. After studying part-time for four years, one more than is typical for a student in Tepper's MBA program, Villanueva received his degree in 2019.

Villanueva began a partnership with USAA in 2016 and appeared in one of the company's member's voices commercials. His wife and son also appear in it.

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