DYMT

DYMT stands for Dont Ya Mean Type (techreport.com thread) DYMT stands for Disciples Youth Mission Team (Australia)

DYHSS

DYHSS stands for Durham Youth Housing and Support Services (Canada)

DYI

DYI stands for Design Yourself Interiors (Boca Raton, FL) DYI stands for Dynamic Market Intellidex Index (finance) DYI stands for Democratic Youth Initiative (Croatia)

DYJ

DYJ stands for Dekalb Yellow Jackets (Lithonia, GA) DYJ stands for Do Your Job

DYJA

DYJA stands for Doncaster Youth Jazz Association (Doncaster, UK)