A dual language learner (DLL) is a young child who is exposed to and is acquiring two or more languages. Multilingualism is common worldwide, and even in countries like the United States, the number of young children who are DLLs is rising rapidly (Goldstein, 2011; Toppelberg, Snow, & Tager-Flusberg, 1999). The purpose of this article is to: (1) help families and professionals understand the special learning needs of DLLs with developmental disabilities, particularly ASD; and (2) present evidence-based intervention practices and strategies that are useful for young children and their families in the home. The authors begin by describing typical language abilities of young children with ASDs. Next, cultural factors that may affect the language environment and acquisition of communication and interaction skills for DLLs are explored. Finally, considerations for intervention planning and implementation and best practices that can be used in the home and community for families and professionals working with young DLLs with ASD are presented.