Posted in Dictionary, Engineering, Pop Culture A3 stands for Antena 3 A3 stands for Alpha 3 (Street Fighter: Alpha 3 game) A3 stands for Alkaline Trio (band) A3 Share Pinterest Tweet Whatsapp Post navigation A1-RB/DOE Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.