desanimania: Mindless insanity.
deserts, sand: See eremikophobia.
devils, demons: See cacodemonomania, daemonophobia, demonomania, demonophobia, phasmophobia, Satanophobia
dextrophobia: An excessive fear of things on the right side of the body.
diabetophobia: A fear of having diabetes or being aware of the disease in another person.
dictionaries: See lexicomania, lexicophobia
didaskaleinophobia: An abnormal or intense fear of going to school or of leaving the security of home and parents.
dikephobia: A dreadful fear of justice which involves concepts of moral rightness, honor, and fairness.
Some fear "legal" authority because they are in danger of losing autonomy and feel dominated when there is a doubt about the legitimacy of the "justice being imposed" and therefore become associated with an illegal coercion.
dining: See deipnophobia
dinophobia: A fear of whirlpools and of dizziness.
Dizziness may also be part of a combination of anxiety induced gastrointestinal effects, that include nausea and possibly diarrhea and vomiting. Dizziness may also be related to a disturbance of the inner ear.
diplopiaphobia, diplophobia: An exaggerated fear of having double vision.
This phobia may be based on a feeling of losing control of one's environment. Double vision may be due to a muscle imbalance or to paralysis of certain eye muscles.
diplychiphobia, dystychiphobia: An excessive fear of accidents. Based on Greek tycho, "fortunate, luck, chance, accident".
Those who fear having accidents are afraid to behave in any way that might result in injury to themselves, to others, or in damage to property or the environment.
Accident phobics associate certain factors with accidents and tend to avoid them. The situations they might avoid include risky jobs, atmospheric conditions, a tiring work schedule, and equipment failure. They also are afraid of personal factors; such as, inattention, errors of perception, risk-taking, and decision-making.
dipsomania: A morbid and insatiable craving for alcohol. Also applied to persistent drunkenness or alcoholism.
dipsomanophobia, dipsophobia: An intense fear or hatred of drinking, especially alcoholic beverages.
dirty: See automysophobia
discomania: Addiction to or obsession with discotheques, disco music, or disco dancing.
disease: See these words medicomania, monopathophobia, nosemaphobia, nosocomephobia, nosomania, nosophobia, trichopahophobia
dishabillophobia: An exaggerated or abnormal fear of undressing in front of someone which includes the fear of being seen in a less than "fully clothed" condition.
This phobia may involve some sexual connotation in that the individual fears being seen in the nude or it may be an obsession with wanting to be seen only at one's best.

There was a young girl of Shanghai
Who was so exceedingly shy,
That undressing at night,
She turned out the light
For fear of the All-seeing eye.
-Bertrand Russell
disorder: See ataxiophobia
Two dangers constantly threaten
the world: order and disorder.
-Paul Valery
dizziness: See dinophobia, illyngophobia
doctor (medicine): See iatrophobia
doctrine (official): See heresyphobia
dogs: See cynomania, cynophobia, kynophobia
domatophobia: An excessive fear of one's home or of being confined in a house.
There is something terrible yet soothing
about returning to a place where you once lived.
You are one of your own memories.
-Mary Morris