The 1921 Liège–Bastogne–Liège was the 11th edition of the Liège–Bastogne–Liège cycle race and was held on 29 May 1921. The race started and finished in Liège. The race was won by Louis Mottiat.
| Race details | ||||||||||
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| Dates | 29 May 1921 | |||||||||
| Stages | 1 | |||||||||
| Distance | 209[1] km (129.9 mi) | |||||||||
| Winning time | 7h 23' 00" | |||||||||
| Results | ||||||||||
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General classification
Final general classification[2][3][4]
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