| Class 28 | |
| Powertype: | Diesel-electric |
| Builder: | Harland and Wolff |
| Builddate: | 1937 |
| Totalproduction: | 1 |
| Britishclass: | 1A+A1 |
| Primemover: | H&W Harlandic |
| Maxspeed: | 60mph |
| Poweroutput: | 500hp |
| Tractiveeffort: | 10000abbr=onNaNabbr=on |
| Numinclass: | 1 |
| Fleetnumbers: | 28 |
| Lastrundate: | 1970 |
| Scrapdate: | 1973 |
| Disposition: | scrapped |
The Belfast and County Down Railway (BCDR) Class 28 locomotive was speculatively built by Harland and Wolff in 1937. It remained operational until withdrawn and scrapped in 1973, retaining its number 28 having six owners in its lifetime.