| Tijl De Decker | |
| Birth Date: | 2001 7, df=y |
| Birth Place: | Antwerp, Belgium |
| Death Place: | Antwerp, Belgium |
| Height: | 183 cm |
| Weight: | 73 kg |
| Discipline: | Road |
| Role: | Rider |
| Amateuryears1: | 2018 |
| Amateurteam1: | Davo CT–Tongeren Junior |
| Amateuryears2: | 2019 |
| Amateurteam2: | Zannata Galloo Cycling Team |
| Amateuryears3: | 2020 |
| Amateurteam3: | Indulek–Doltcini–Derito CT |
| Amateuryears4: | 2021–2022 |
| Amateurteam4: | ACROG–Tormans |
| Proyears1: | 2023 |
Tijl De Decker (29 July 2001 – 25 August 2023) was a Belgian racing cyclist. He was the younger brother of cyclist Alfdan De Decker.
After switching to the U23s, De Decker first rode for three years for Belgian clubs. For the 2023 season he became a member of the . Already in the first race for his new team he achieved his first victory in a UCI race by winning the third stage of the Tour de Taiwan.[1] This was followed in April by the prestigious victory in the Paris–Roubaix Espoirs.[2] At the Giro Next Gen, he was one of 24 riders disqualified by the jury who determined that the riders had been pulled by escort motorcycles or cars on the final climb up to the Stelvio Pass.[3]
In July 2023, it was announced that De Decker would move from the development team to 's UCI ProTeam for the 2024 season.[4]
On 25 August 2023, he died at Antwerp University Hospital from injuries as a result of a training accident in which he collided with the rear of a car in Lier near Antwerp two days earlier.[5] [6] He was 22.[7]