Catholic High School (simplified Chinese: 公教中学; traditional Chinese: 公敎中學) (also known as CHS or Cat High) is an all-boys Catholic school in Singapore. It has a primary section offering a six-year primary education and a secondary section offering the four-year GCE 'O' Level education. From 2013, the secondary section also offers the six-year Integrated Programme jointly with Singapore Chinese Girls' School and CHIJ St. Nicholas Girls' School. The school is a Special Assistance Plan school, as well as a Gifted Education Programme centre.