Hendrik Ulbo Eric "Bonno" Thoden van Velzen (5 April 1933 – 26 May 2020) was a Dutch anthropologist, Surinamist and Africanist.
His ancestors are Protestant pastors from the neighbourhood of Emden in East-Frisia, which is now part of the German federal state of Lower Saxony.
In the Second World War he moved together with his parents and siblings to Utrecht because of the German Heer declaring the city of Vlissingen and its surrounds as Sperrgebiet.
Thoden van Velzen left Utrecht University in 1991, when his position was lost in a reorganization.
[1] From 1991 until his retirement in 1999, Thoden van Velzen was professor at the Amsterdam School for Social Science Research.