St Edmund's Catholic School is a coeducational Roman Catholic secondary school, located in Portsmouth in the English county of Hampshire.
It is a voluntary aided school in the trusteeship of the Roman Catholic Diocese of Portsmouth, and is maintained by Portsmouth City Council. The school is named after Saint Edmund Rich, a 13th-century Archbishop of Canterbury.
St Edmund's Catholic School offers GCSEs, BTECs and OCR Nationals as programmes of study for pupils.