| Harper Runabout | |
| Designer: | Robert Harper |
| Production: | 1921–26 |
| Layout: | One front, two rear wheels Rear-wheel drive |
| Engine: | Single-cylinder, two-stroke 269 cc |
The Harper Runabout is a three-wheeled motor vehicle designed by Robert Harper. It was manufactured in Manchester, England, by A.V. Roe & Co. from 1921 until 1926, by which time about 500 Harpers had been produced.