| State: | MD |
| Type: | MD |
| Route: | 418 |
| Alternate Name: | Ringgold Pike |
| Map Custom: | yes |
| Map Notes: | Maryland Route 418 highlighted in red |
| Length Mi: | 4.62 |
| Length Round: | 2 |
| Established: | 1930 |
| Direction A: | West |
| Terminus A: | in Leitersburg |
| Junction: | in Ringgold |
| Direction B: | East |
| Terminus B: | near Ringgold |
| Counties: | Washington |
| Previous Type: | MD |
| Previous Route: | 414 |
| Next Type: | MD |
| Next Route: | 422 |
Maryland Route 418 (MD 418) is a state highway in the U.S. state of Maryland. Known as Ringgold Pike, the state highway runs 4.62miles from MD 60 in Leitersburg east to the Pennsylvania state line near Ringgold, where the highway continues as State Route 2007 (SR 2007) in Franklin County. MD 418 was constructed in 1930 from Leitersburg to Ringgold and extended to the state line in the mid-1950s. The state highway was rebuilt in the late 1950s.
MD 418 begins at an intersection with MD 60 (Leitersburg Pike) in Leitersburg outside of the Leitersburg Historic District, which can be accessed by Leiter Street and Ringgold Street, which are the old alignments of MD 60 and MD 418, respectively. MD 418 heads northeast as a two-lane undivided highway through farmland. The state highway intersects MD 64 (Smithsburg Pike) just west of the unincorporated village of Ringgold. In Ringgold, MD 418 intersects Midvale Road and Windy Haven Road, which are the old alignments of MD 418 and MD 64, respectively. The state highway continues northeast, crossing a tributary to Red Run before reaching its terminus at the Pennsylvania state line. The highway continues north as SR 2007 (Midvale Road) toward the unincorporated village of Rouzerville.
MD 418 was paved from Leitersburg to Ringgold in 1930. The state highway was extended northeast to the Pennsylvania state line around 1956, the same year the highway's present alignment at its western end was constructed in conjunction with MD 60's bypass of Leitersburg. MD 418 was reconstructed from the eastern end of the bypass of Leitersburg to the state line in 1958, including the construction of the highway's present alignment through Ringgold.