Juw Dekema (1449/50 – October 24, 1523) was a Frisian chieftain and Schieringer in Weidum and Baard, who was elected as potestate of Friesland in 1494 at the diet of Sneek. In 1498 he asked Albrecht of Saxony to rule the land. Juw served as a councilor at the Court of Friesland (1500–1515) and magistrate of Baarderadeel (1510–1512).