Percy Allan
| Percy Allan | |
|---|---|
| Born | 12 July 1861 | 
| Died | 7 May 1930 (aged 68) Darlinghurst, New South Wales, Australia | 
| Occupation | Civil engineer | 
| Known for | Bridge design; Allan Truss bridge | 
Percy Allan (12 July 1861 – 7 May 1930) was an Australian civil engineer who designed many public works in New South Wales, including the design of 583 bridges.