Irmo High School is a public high school in unincorporated Lexington County, South Carolina, United States,[3] with a Columbia postal address.

Irmo High School falls under the administrative jurisdiction of District 5 of Lexington and Richland Counties.

[4] Irmo's sports teams compete as the Yellow Jackets and participate in Class 4A SCHSL.

[5] The school has won 66 team state championships.

[6] Although Irmo had been the "Yellow Jackets" for many years, in 1978 a new logo was introduced.