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Objective: To conduct a systematic review synthesizing the evidence for the effectiveness of the Wheelchair Skills Training Program (WSTP). Data Sources: We searched PubMed, the Cochrane Library, CINAHL and Embase databases, as well as grey literature, up to 10 October 2017. Study Selection: Randomized controlled trials (RCTs) assessing the effectiveness of the WSTP. Data Extraction: Two independent reviewers screened articles and extracted data. Methodological quality was assessed using Cochrane's Risk of Bias Tool. Data Synthesis: Meta-analyses (including sub-group analyses) were conducted for the Wheelchair Skills Test (WST) and WST Questionnaire (WST-Q) total capacity scores. We qualitatively assessed retention, WST/WST-Q subtotal and individual-skill capacity scores and other identified outcomes. The quality of evidence was determined using the Grades of Recommendation, Assessment, Development and Evaluation (GRADE) approach. Thirteen articles (581 participants) were included for analysis. The level of evidence was of moderate quality. The WSTP increased the post-training WST/WST-Q total capacity scores by 14.0% (95% CI: 7.4, 20.8; p <.0001) compared to no treatment, standard care or educational controls, a relative increase over baseline of 21.2%. Subgroup analyses showed that training was more effective for new wheelchair users. Retention of training effects was suggested by the absence of significant declines between tests post-training and at follow-up. The WSTP was found to have positive effects on some other outcomes. No serious adverse events were reported. Conclusions: There is moderate quality evidence that the WSTP is a safe intervention that has a clinically meaningful effect on WST/WST-Q capacity scores and some other outcomes. A systematic review and meta-analysis of 13 randomized controlled trials on a total of 581 participants, using the Wheelchair Skills Training Program (WSTP) as the intervention, found that the WSTP increased Wheelchair Skills Test (WST) and WST Questionnaire (WST-Q) total capacity scores by 21.2% relative to baseline. Subgroup analyses showed that training was more effective for new wheelchair users. The WSTP was found to have positive effects on some other outcomes and no serious adverse events were reported. The WSTP warrants cautious implementation in clinical and educational settings. [ABSTRACT FROM AUTHOR]