Lansdowne High School
| Lansdowne High School | |
|---|---|
| Address | |
3800 Hollins Ferry Road , 21227 United States  | |
| Coordinates | 39°14′39″N 76°39′03″W / 39.2443°N 76.6507°W | 
| Information | |
| Type | Public high school | 
| Motto | "What Did You Learn Today?" | 
| Opened | 1963 | 
| School district | Baltimore County Public Schools | 
| Principal | Allison Seymour | 
| Grades | 9-12 | 
| Campus | Urban | 
| Color(s) | Blue and red | 
| Mascot | Vikings | 
| Website | lansdownehs | 
Lansdowne High School (LHS), formerly known as Lansdowne Sr. High School, and currently known as the Lansdowne High School Academy for Advanced Professional Studies, is a four-year public high school in Baltimore County, Maryland, United States.