Alexander Vinokourov, also written Alexandre Vinokourov, (born 1973) is a Kazakh cyclist.

He became professional 1997 at the Casino team. His breakthrough was in 1999 when he won the Quatre Jours de Dunkerque and the Dauphiné Libéré. In 2000 he joined Team Telekom (called T-Mobile Team since 2004). That year he became second in the Road Race of the Olympic Games. He also won a stage in the Vuelta a España. His most successful year so far is 2003. That year he won Paris-Nice, a few days after his friend Andrei Kivilev died. Exactly 40 days later, which is a traditional Kazakh period of mourn he won the Amstel Gold Race. He dedicated both victories to Kivilev. The same year he also won the Tour de Suisse and a stage in the Tour de France and he became 3rd in the final ranking of the Tour de France. In 2004 he was one of the main favorites for the Tour de France, but a few weeks before the start he broke his shoulder in the Tour de Suisse, so he missed the Tour de France.