Abraham Jacobsz Staal (1752 – April 5, 1804) was a Dutch Mennonite teacher at Goes (1779), Bolsward (1787) and Leeuwarden (1788) who combined sermons with revolution.
Staal studied in Amsterdam until 1778; his fellow students were Wijbo Fijnje and François Adriaan van der Kemp.
Nothing was known of revolutionary activities in Bolsward during the time of the Patriots, although the Mennonites were quite strongly represented in the local voluntary schutterij and were sure to be lent a willing ear by him.
Within a year Staal and Paape got into difficulties for their fanaticism, especially after a small popular revolt in Kollum.
After the coup in January 1798, Staal was put under house arrest in Huis ten Bosch in The Hague, where the prisoners could walk in the garden, but not speak whilst there.