| St. Catherine of Siena Academy | |
| Address: | 28200 Napier Road |
| City: | Wixom |
| State: | Michigan |
| County: | Oakland County |
| Zipcode: | 48393 |
| Country: | USA |
| Established: | 2008 |
| District: | Archdiocese of Detroit |
| Religion: | Roman Catholic |
| President: | Lia Johnston |
| Principal: | Judith Hehs |
| Chaplain: | Richard J. Elmer, C.S.B. |
| Ceeb: | 233-789 |
| Type: | Private |
| Gender: | Girls |
| Tuition: | $11,450 |
| Grades: | 9–12 |
| Motto: | Caritas, Veritas |
| Motto Translation: | From knowledge follows love Literal translation: Love, Truth |
| Accreditation: | Michigan Association of Non-Public Schools |
| Team Name: | Stars |
| Athletics Conference: | Catholic High School League Michigan High School Athletic Association |
| Enrollment: | 260 |
| Enrollment As Of: | 2019 |
St. Catherine of Siena Academy is a private Roman Catholic girls' high school in Wixom, Michigan, United States.