Saint Louis School, located in the neighborhood of St. Louis Heights in Honolulu, Hawaii, is a historic Roman Catholic college preparatory school for boys. It was founded in 1846 to serve Catholics in the former Kingdom of Hawaii. Located within the Roman Catholic Diocese of Honolulu, it is affiliated with the Society of Mary, a religious order of brothers and priests called the Marianists who also administer Chaminade University of Honolulu, formerly the college section of Saint Louis School. It is located near Sacred Hearts Academy, a girls' school founded by the Congregation of the Sacred Hearts of Jesus and Mary, and both schools hold joint programs such as cultural festivals and the JROTC.

Honolulu is the capital and most populous city of the U.S. state of Hawaii, which is in the Pacific Ocean. An unincorporated city, it is the county seat of the consolidated City and County of Honolulu, situated along the southeast coast of the island of Oʻahu, and is the westernmost and southernmost major U.S. city. Honolulu is Hawaii's main gateway to the world. It is also a major hub for business, finance, hospitality, and military defense in both the state and Oceania. The city is characterized by a mix of various Asian, Western, and Pacific cultures, reflected in its diverse demography, cuisine, and traditions.