Sir M MacDonald & Partners
| Company type | Partnership |
|---|---|
| Industry | Consultancy |
| Founded | 1921 (as MacDonald & MacCorquodale) |
| Defunct | 1989 |
| Fate | Merged with Mott, Hay & Anderson |
| Successor | Mott MacDonald |
| Headquarters | London, UK |
Sir M MacDonald & Partners was a UK-based civil engineering consultancy during the 20th century, named after Sir Murdoch MacDonald, a Scottish-born civil engineer (and later a politician). Its establishment and early history was strongly associated with work in Egypt during the 1920s. In 1989, the company merged with Mott, Hay and Anderson to form Mott MacDonald, today a major international multidisciplinary consultancy.