Hendrik Doeff (2 December 1777 – 19 October 1835) was the Dutch commissioner in the Dejima trading post in Nagasaki, Japan, during the first years of the 19th century.

In 1808, HMS Phaeton, under the command of Captain Fleetwood Pellew, entered Nagasaki's harbour to ambush some Dutch trading ships that were expected to arrive shortly.

The Phaeton, holding the Dutch representatives hostage, demanded that supplies (water, food, fuel) be delivered to her in exchange for their return.

[3] The Phaeton left two days later on 17 October, before the arrival of Japanese reinforcements, and after the crew had learned that the Dutch trading ships would not be coming that year.

Following Phaeton's visit, the Bakufu reinforced coastal defenses and promulgated a law prohibiting foreigners coming ashore, on pain of death (1825-1842, Muninen-uchikowashi-rei).