Daniël Raap was a porcelain merchant who played a leading role during the Orangist revolution in the Netherlands of 1747–1751.
During the opening months of the revolution that would put an end to the Second Stadtholderless Period, Raap, together with other agitators like the journalist Rousset de Missy published pamphlets demanding the restoration of the stadtholderate in the provinces of the Dutch Republic that had abolished the office, and the appointment of the Frisian stadtholder William IV, Prince of Orange, in all provinces to this dignity, that should henceforth be hereditary in the male and female line. At the same time the agitators asked for more influence of the common people on the government that had hitherto been dominated by the Regents. More specifically, the petition he circulated demanded that militia captains would henceforth be directly elected; vacant public offices be auctioned off; and the guilds be restored in their old privileges.
The agitators asked the Prince to come to Amsterdam to oust the city government, which he did on 2 September 1748.