| Walter Sillers State Office Building | |
| Location: | 550 High Street, Jackson, Mississippi |
| Map Type: | Mississippi#USA |
| Start Date: | 1970 |
| Completion Date: | 1972 |
| Etymology: | Walter Sillers Jr. |
| Building Type: | Government |
| Floor Count: | 20 |
| Architect: | Charles G. Mitchell |
The Walter Sillers State Office Building is a high-rise government office building in Jackson, Mississippi, USA.[1] It was designed in the International Style and built from 1970 to 1972.[1] It is the fifth-tallest building in Jackson.[2] It is named after the politician Walter Sillers Jr.