Geertje Dircx [????rc? d?rks] (c. 1610-1615 – c. 1656) was the lover of Rembrandt van Rijn after the death of his wife Saskia. She was hired as a wetnurse to the painter's son Titus, but lived with Rembrandt as his lover for several years. The relationship broke up acrimoniously, leading to a lengthy court-case for "breach of promise" (a euphemism for seduction under [breached] promise to marry), in which she claimed maintenance from Rembrandt. She was eventually imprisoned after displaying increasingly unstable behaviour. After her release she tried to sue Rembrandt for wrongful imprisonment.
She may be the model for a number of Rembrandt's works, but there is disagreement about which images depict her.