Saint Paul's Institution (Malay: Institusi Saint Paul; abbreviated SPI) is an all-boys (and girls for form 6) and one of the oldest schools in Seremban and also in the country. The school is widely known as SPI and the students of St Paul's Institution are called Paulians. The school is named after Saint Paul. SPI Secondary was founded in 1899 by Father Catesson of the Paris Foreign Missions Society in Seremban, Negeri Sembilan, Malaysia. Its aim was to provide an English education to "The boys of Seremban and its outstations".