Tiyan High School

Tiyan High School (THS) is a senior high school in Barrigada, Guam. It is a part of the Guam Department of Education.

It was scheduled to take students from Adelup, Anigua, Barrigada, Barrigada Heights, Hagåtña, Las Palmas, Macheche, Maina, Maite, Mogfog, Mongmong, Tiyan, and Toto.

The school opened in August 2014. About 1,400 students were scheduled to attend the school on opening day. It opened with a practice gymnasium. Construction on the school's full-size gymnasium began in 2015. The full-size gym is being built for $14.4 million, or $576,218.61 each year for 25 years.

Rocky Daleno of VIBE, the youth section of the Pacific Daily News, described the pupils as having "a good feeling" about the school.