The first efficient regioselective pyridylation of 1-tert-butoxycarbonyl-3-iodoazetidine to produce 2- and 3-heteroarylazetidines under palladium-catalyzed conditions has been developed. The established direct pyridylation of azetidines affords 2- vs. 3-heteroarylazetidines in moderate to good yields (up to 92%) and with good regioselectivity (up to 98:2) by using different ligands.