| Rainbow Special | |
| Type: | Inter-city rail |
| Status: | Discontinued |
| Locale: | South Central United States |
| First: | 1921 |
| Formeroperator: | Missouri Pacific Railroad |
| Start: | Kansas City, Missouri |
| End: | Little Rock, Arkansas |
The Rainbow Special was a "fast train" operating over the Missouri Pacific between Kansas City, Missouri, and Hot Springs, Arkansas,[1] [2] (later extended to Little Rock, Arkansas). The service was introduced in 1921.[3]