- YYA stands for Youth and Young Adult ministries (Church of the Brethren ministry for youth and young adults)
- YYA stands for You, You’re Awesome (band)
- YYA stands for Ystävyys-, Yhteistyö- ja Avunantosopimus (Finnish: Agreement of Friendship, Cooperation & Mutual Assistance Treaty Finland & USSR)
- YYA stands for Youth and Young Adults Program (United Church of Christ Coalition for Lesbian, Gay, Bi, and Transexual Concerns; Cleveland, OH)
YYA