Adults with autism spectrum disorders (ASD) are disproportionately unemployed in comparison to adults without disabilities. In this umbrella review, we summarized the findings of 31 systematic reviews and meta-analyses of ASD vocational intervention research, encompassing 287 primary intervention studies. Most primary studies focused on strategies for teaching low-skill job tasks. In contrast, few primary studies examined interventions to improve more direct and meaningful measures of employment, such as job attainment, wages, hours worked, benefits, and job satisfaction. Over 60% of primary studies evaluated either behavioral or technology interventions, with a substantial overlap of primary studies between reviews. Few primary studies explored other approaches, including comprehensive support strategies, accommodations typically found in the workplace, and strategies for teaching job seeking. Intervention effects were generally positive; however, review study quality was variable and low for many reviews, constraining the interpretation of findings. Most reviews reported incomplete primary study participant demographic information, rendering it challenging to generalize findings outside of the reviews. Our results highlight the need for a greater focus on outcome measures indicative of actual employment, the evaluation of a greater variety of interventions, including accommodations typically found in the workplace, and the need to assess comprehensive support. Low review quality underscores the need for improved methodological rigor in reviews of vocational intervention research.