Spanish monolingual speakers often produce recipient ("Pedro le da un lápiz a María") and nonrecipient constructions ("Antonio le lava la camiseta a Carmen") doubled by a dative clitic. Second language speakers and heritage speakers usually avoid clitics. This study examined whether structural priming could effectively increase the production of clitics in monolingual speakers (N = 23), L2 speakers (N = 28), and heritage speakers (N = 24). Participants completed a baseline study that measured the use of clitics in a picture description task, followed by a priming treatment, an immediate posttest, and a posttest a week later. Results showed that priming increased clitic production for all groups, and that the increase was still significant a week later in L2 speakers and heritage speakers. These findings support the view that structural priming may implicate implicit language learning and considers its pedagogical implications.