Wright Eclipse Gemini 3 bodied Volvo B5TL in September 2017 | |
| Parent | Delaine-Smith family |
|---|---|
| Founded | 1890 |
| Headquarters | Bourne, Lincolnshire |
| Service area | Peterborough |
| Service type | Bus services |
| Fleet | 35 (September 2024) |
| Website | www.delainebuses.com |

Delaine Buses is a bus operator based in Bourne, Lincolnshire, England.
In 1890, William Smith began a horse drawn passenger service. After a taxi operation commenced in 1910, a 14-seat Ford Model T bus was purchased in 1919 and services commenced to Grantham, Spalding, and Stamford. In May 1941, the business was incorporated.
As of July 2020, Delaine Buses operates seven bus routes.[outdated statistic]
From the 1930s to the 1990s, the majority of vehicles in the Delaine fleet were of Bedford or Leyland manufacture. By 1995, Delaine had standardised on Volvos with East Lancs body, followed by switching over to Wrights in 2009 after East Lancs merged with Optare.
As of September 2024, the fleet consisted of 35 buses. A heritage fleet is also maintained.