Lourdes Aflague "Lou" Leon Guerrero (born November 8, 1950) is an American politician and former nurse who has served as the ninth governor of Guam since 2019.

[5] Leon Guerrero won election to the Guam legislature in 1994, serving two terms before unsuccessfully running for lieutenant governor in 1998.

[7] Leon Guerrero re-entered politics to mount a campaign for governor of Guam in the 2018 gubernatorial election.

[1] In office, Leon Guerrero has signed legislation to raise the minimum wage in Guam and coordinate the territory's response to the COVID-19 pandemic.

She attended the Academy of Our Lady of Guam High School, moving to the U.S. mainland to study and work in Southern California.

In 1973, Leon Guerrero earned her Bachelor of Science degree in Nursing at California State University, Los Angeles.

She went on to attain a Master of Public Health degree at the University of California, Los Angeles (UCLA) in 1979.

[11] In 1989, Leon Guerrero, as the president of the Guam Nurses Association, provided the sole testimony from a Chamoru woman against Bill 848, a legislative measure intended to outlaw abortion on the island.

During her first term in the Guam Legislature, Leon Guerrero was in the majority and sponsored or co-sponsored 18 public laws.

[17] As a minority member of the 24th Guam Legislature, Leon Guerrero sponsored or cosponsored 6 public laws.

[23] Succeeding her father and her brother, Leon Guerrero is the chairwoman of the board, chief executive officer and president of the Bank of Guam.

[24] Leon Guerrero was a founding member[25] and served as the first President of the Guam Women's Chamber of Commerce.

[1] Leon Guerrero expressed her support for a proposal to raise Guam's minimum wage to $9.25 in September 2019.

[28] A bill has since been passed and signed into law by Governor Guerrero delaying the increase in the minimum wage by 6 months, to reduce its impact to businesses during the Covid-19 Pandemic.

To offset the rising cost of power and to avert economic crisis, Leon Guerrero pursued the creation of a monthly $100 credit for ratepayers in the territory.

[30] In October 2019, the Lieutenant Governor Josh Tenorio and Chief of Staff Tony Babauta visited Washington, D.C., to lobby for war claims, among other administration initiatives.

[35] By February, hundreds of Guam World War II survivors received their compensation through the local advance payment system.

Leon Guerrero announced an ambitious "Path to Half" vaccination campaign at a press conference on March 15, 2021.