Dulles High School (Sugar Land, Texas)

John Foster Dulles High School, more commonly known as Dulles High School, is a high school in Sugar Land, Texas. It was the first site purchase and new build, in the 1950s, of the newly formed Fort Bend Independent School District (FBISD), which held its first graduation in 1960. The first class to graduate from Dulles itself was 1962. Its mascot is the Viking, and its team colors are red, white and blue. Its slogan was "Set Sail" up until the end of the 2018–2019 school year, but was changed to "Viking True" the next school year. It was changed back to "Set Sail" in the 2024-2025 school year.

At its highest, the school roll was over 4,000 students during the 1976–1977 school year. During the 2006–2007 school year, the roll comprised 2,291. The school serves children from parts of Sugar Land, Missouri City and the city of Meadows Place as well as portions of the extraterritorial jurisdiction (ETJ) of Stafford, and a portion of the First Colony community. In previous eras, from 1959 onward, Dulles was the lone public high school serving east Fort Bend County, including the Four Corners community, and it served most of (the Fort Bend County portion of) the City of Stafford until the city broke away from FBISD in 1977.

Dulles was named a National Blue Ribbon School in 1984, meeting criteria of an "Exemplary High Performing Public School" having "excellence in the fields of academics, arts, and athletics."

As of 2021, the principal is Corey Stewart, a former United States Marine.