Duncan Bell McLachlan (30 October 1893 – 15 September 1958) was a New Zealand cricketer. He played five matches of first-class cricket for Canterbury and Otago between the 1912–13 and 1921–22 seasons.
| Format | Matches | Runs | Avg | 100s/50s | Top Score | Wickets | Bowl Avg | Best Bowling | Catches/St |
| First-class | 5 | 13 | 1.62 | 0/0 | 10 | 30 | 12.90 | 7/57 | 1/– |
