Shiloh High School is a public high school located in Snellville, Georgia, United States, in southern Gwinnett County. The school is part of the Gwinnett County Public Schools system and opened in 1984. It serves students in the Shiloh Cluster, which feeds from the Anderson Livsey, Annistown, Centerville, Partee, and Shiloh Elementary Schools and Shiloh Middle School.

The school mascot is the General, and the school colors are black, silver, and white.

Shiloh, like Peachtree Ridge, was on block scheduling, and until the 2015-2016 school year, was on a regular six-period day starting 2008-2009, but is now again on a block schedule.

International Baccalaureate Program

As of 2014, Shiloh High School has been approved for International Baccalaureate, which is the second school in Gwinnett County to do so, the first being Norcross High School. Shiloh was also approved for the Career-Related Certificate, which is a fork of the original IB program.

Notable alumni

• Diana DeGarmo - 2004 American Idol finalist
• Rusty Joiner - actor and model
• Lance Krall - improv comedian and actor
• Kyle Lewis - MLB baseball player
• Josh Okogie - NBA basketball player
• David Pollack - former NFL football player
• Cameron Sample - NFL football player
• Troy Sanders - bassist and vocalist for heavy metal band Mastodon
• John Clarence Stewart - actor and singer
• Stephen Weatherly - NFL football player