Pieter-Jan Belder (born 19 January 1966) is a Dutch instrumentalist in historically informed performance, playing recorder, harpsichord and fortepiano.
Born in Capelle aan den IJssel, Belder studied recorder with Ricardo Kanjii at the Koninklijk Conservatorium in The Hague, and harpsichord with Bob van Asperen at the Sweelinck Conservatorium in Amsterdam.
He has worked as a continuo player with ensembles such as the Nederlandse Bachvereniging, Collegium Vocale Gent, the Concertgebouworkest and Camerata Trajectina.
[1] Belder took part in the recordings of the complete works by Johann Sebastian Bach by the label Brilliant Classics, including Das wohltemperierte Klavier.
Belder used different instruments for the different character of compositions by William Byrd, Peter Philips, Jan Pieterszoon Sweelinck, Giles Farnaby and John Bull, among others.