Background: Engaging in physical activity (PA) can bring many benefits to individuals with spinal cord injury (SCI) and understanding the best interventions to promote PA is essential. The objective of this study was to systematically review the literature to check the effectiveness of interventions aimed at increasing the PA level in SCI individuals. Methods: The bibliographic search was performed in the PubMed, LILACS, Web of Science, and SPORTDiscus databases, including randomized controlled trials involving humans, in which PA level was the primary or secondary outcome, and with samples composed entirely or partially of individuals with SCI. The articles were analyzed by 2 researchers using descriptive statistics and the quality of the studies was assessed using the CONSORT criteria. Results: Seven articles were selected. The studies used different strategies of intervention. Six out of the 7 studies included in the analysis proposed interventions that were effective in increasing PA level (action plans/coping strategies, home exercises, behavioral intervention, elaboration of intentions, workshops, and education for the promotion of PA). In only 1 study, the proposed strategy was not effective (reading a guideline). Conclusion: It is concluded that these 6 interventions are effective in increasing the PA level in SCI individuals.