Pieter Jan "Piet Jan" van der Giessen (1 January 1918 – 10 June 1993) was a sailor from the Netherlands, who represented his native country as at the 1952 Summer Olympics in Helsinki. Piet Jan, as crew member on the Dutch 5.5 Metre De Ruyter, took the 13th place with helmsman Wim de Vries Lentsch and fellow crew member Flip Keegstra.

In his professional life Van der Giessen was one of the owners and founder of the shipyard Van der Giessen de Noord.

• "Piet Jan van der giessen Bio, Stats, and Results". Olympic Sports. Sports-Reference.com. Archived from the original on 2020-04-18. Retrieved 2014-01-08.
• "OLYMPISCHE ZEILPLOEG" (Morning ed.). De vrije pers : ochtendbulletin. 1952-06-20. Retrieved 2014-01-26.
• "The Officiel Report of the Organizing Committee for the games of the XV Olympiad Helsinki 1952" (PDF). 1955. Archived from the original (pdf) on 2008-04-11. Retrieved 2014-01-26.