Arianna Jeanette Romero Téllez (born 29 July 1992) is an American-born Mexican footballer who plays as a central defender or a fullback for Danish club HB Køge and for the Mexico national team.

Individually, Romero was on the 2009 Arizona Olympic Development Program team that advanced to the semifinals of the Region IV Championship.

On 2 September 2011, she scored her second career goal, served two assists and produced a career-high four points during the team's 6–0 defeat of the Arkansas Razorbacks.

[4] As a junior, Romero missed the first five games of the 2012 season while playing for the Mexico National Under-20 Football Team at the FIFA U-20 Women's World Cup in Japan.

During her final year with the Huskers in 2013, Romero led the defensive line as a center back and helped the team record eight shutouts.

[5] Mexico won their group with a pair of wins over Hungary (1–0) and Portugal (3–0), which placed them in the seventh-place game at the tournament but lost to Denmark 3–0.

[citation needed] Romero was one of four collegians to be called up for Mexico's women's nationally televised international friendly against the United States of America in Washington, D.C. at RFK Stadium on Tuesday, 3 Sept.. Romero started and played the entire match on a young back line for Mexico.