Mark Langdale (born 1954)[1] is a businessman and former U.S. ambassador to Costa Rica (2005 to 2008).

He is a member of the Board of Directors for the George W. Bush Presidential Center.

[2] Langdale earned a bachelor of business administration from the University of Texas at Austin (1975), and a bachelor of laws from the University of Houston School of Law (1977).

[2] He practiced law in Houston for ten years.

[3] While Ambassador, he focused on the ratification of the Central America Free Trade Agreement.