| Lex Nederlof | |
| Fullname: | Leendert Arie Nederlof |
| Nickname: | Lex |
| Birth Date: | 10 June 1966 |
| Birth Place: | Oostvoorne, Netherlands |
| Currentteam: | Retired |
| Discipline: | Road |
| Role: | Rider |
| Proyears1: | 1988 |
| Proteam1: | (stagiaire) |
| Proyears2: | 2005 |
| Proteam2: | Fondas Imabo–Doorisol |
| Proyears3: | 2012–2018 |
Leendert Arie Nederlof (born 10 June 1966 in Oostvoorne) is a retired Dutch cyclist. He was the oldest active professional cyclist until his retirement in 2018.[1]