<p>This scoping review was focused on the associations between autism and gender diversity from an intersectional perspective. The scoping review aimed to answer the following five research questions: (1) What percentage of studies that examine the co-occurrence between autism and gender diversity are based on quantitative, qualitative, or mixed methods research? (2) What theoretical models are used to improve understanding of this relationship? (3) How often do these studies employ an intersectional perspective in the examination of autism and gender identity? (4) How many studies use participants with lived experiences and/or consider perspectives of children, young people, and adults in their methodology? (5) How often do these studies acknowledge the importance of online spaces? The current scoping review found 29 studies that (1) were predominantly quantitative, (2) focused mainly on children and adolescents, and (3) explained the co-occurrence between autism and gender diversity using a broad range of bio-psycho-social variables. The main gaps identified in this scoping review were (1) the need to conduct future mixed-method research that is co-produced by autistic and gender diverse individuals; (2) the importance of working with autistic and gender diverse individuals from intersectional, neurodiverse, and gender diverse affirmative approaches in clinical, educational, and research settings; and (3) how online environments could potentially be used by autistic and gender diverse people to express their own identity throughout their lives.</p>