Lucy Mercer Rutherfurd | |
|---|---|
 Lucy Page Mercer, circa 1915 | |
| Born | Lucy Page Mercer April 26, 1891 Washington, D.C., United States |
| Died | July 31, 1948 (aged 57) |
| Occupation(s) | Dress store worker, secretary |
| Known for | Relationship with Franklin D. Roosevelt |
| Spouse | |
| Children | 1 |
Lucy Mercer Rutherfurd (née Lucy Page Mercer; April 26, 1891 – July 31, 1948) was an American woman who sustained a long affair with US president Franklin D. Roosevelt.