Siena Catholic College, Queensland, Australia is a co-educational Catholic day college situated at Sippy Downs on Queensland's Sunshine Coast. Opened in 1997, it caters for students in Years 8-12 and has an enrolment of approximately 750 students. The college shares its campus with Siena Primary School, a Prep -Year 7 school.The College is an Archdiocesan College administered by Brisbane Catholic Education and has close links with the Stella Maris Parish, having S.