| St. Elizabeth High School | |
| Streetaddress: | 1500 Cedar Street |
| State: | Delaware |
| County: | New Castle County |
| Zipcode: | 19805 |
| Country: | USA |
| Coordinates: | 39.7383°N -75.5733°W |
| Denomination: | Roman Catholic |
| Founder: | James M. Grant |
| Head Label: | Pastor |
| Head: | Fr. Roger DiBuo |
| Principal: | Patrick Jordan [1] |
| Ceeb: | 080190 |
| Accreditation: | Middle States Association of Colleges and Schools[2] |
| Mascot: | Viktor the Viking |
| Team Name: | Vikings |
| Colors: | Maroon and gold |
| Yearbook: | The Magnificat |
St. Elizabeth High School is a coeducational Catholic high school in Wilmington, Delaware. It is part of the Roman Catholic Diocese of Wilmington. It was founded in 1940 by James M. Grant. Originally, the school was staffed by sisters of the Benedictine order. St. Elizabeth High School shares many facilities with the St. Elizabeth Elementary School and receives a good share of its high school enrollment from the elementary school graduates. The school colors are maroon and gold.