| Abbreviation | Definition |
|---|---|
| DIOS | Distal Intestinal Obstructive Syndrome |
| DMHS | Dampness and Mold Hypersensitivity Syndrome |
| DORS | Denial of reality syndrome was in use long back |
| DPDS | Disconnected Pancreatic Duct Syndrome |
| DPS | Disappearing Penis Syndrome |
| DPS | Dumb Parent Syndrome |
| DPTS | Delayed Pulmonary Toxicity Syndrome |
| DRRS | Duane Radial Ray Syndrome |
| DRRS | Duane-Radial Ray Syndrome |
| DS | Downs Syndrome |
| DSA | Down Syndrome Alliance |
| DSAJ | Down Syndrome Association of Jacksonville |
| DSAK | Down Syndrome Association of Kingston |
| DSC | Down Syndrome Community |
| DSCR | Down Syndrome Critical Region |
| DSDD | Down Syndrome Disintegrative Disorder |
| DSDN | Down Syndrome Diagnosis Network |
| DSDT | Down Syndrome Development Trust |
| DSFN | Down Syndrome Family Network |
| DSGO | Down Syndrome Group of the Ozarks |