What does DIOC stand for?

Dental Informatics Online Community (FLAA)

Digital Input/Output Control - Computer science

Dimethyloxacarbocyanine - Organic chemistry

Diocese - or Diocesean

Displayed Independent of Computer (ACAE)

Dissolved Inorganic Carbon - Also, DIC

District Intelligence Operations Centers - Vietnam

Ducati International Owners Club (EA)

Diocesan (ADWA)