This is the world's biggest collection of phobia words – almost 650 in total. Although most are rare, they have all appeared in print. Where a word is marked 'syn. of' this indicates that it is a synonym of the following word. (In many cases this simply reflects spelling variations.) Sources are listed in brackets after each entry; see the footnotes for the meanings of the abbreviations.
| obesophobia | Fear of gaining weight. [ID, CE] |
| ochlophobia | Fear of crowds. [OED, ID, CE] |
| ochophobia | syn. of motorphobia. [ID] |
| odontophobia | Fear of teeth. [ID, CE, WP] |
| odynophobia | syn. of algophobia. [ID, CE] |
| oecophobia | syn. of ecophobia. [ID] |
| oenophobia | Fear of wine. [ID, CE] |
| oikophobia | syn. of ecophobia. [ID] |
| oiuophobia | syn. of oenophobia. [ID] |
| olfactophobia | Fear of odours. [ID, CE] |
| ombrophobia | Fear of rain. [ID, CE] |
| ommatophobia | Fear of eyes. [ID] |
| ommetaphobia | syn. of ommatophobia. [ID] |
| omophagiaphobia | Fear of eating raw flesh. [WP] |
| omositiaphobia | syn. of omophagiaphobia. [WP] |
| oneirogmophobia | Fear of wet dreams. [ID, CE, WP] |
| onomatophobia | Fear of a specific name. [ID, CE] |
| ophiciophobia | syn. of ophidiophobia. [ID] |
| ophidiophobia | Fear of snakes. [ID] |
| ophiophobia | syn. of ophidiophobia. [ID] |
| ophresiophobia | syn. of olfactophobia. [ID] |
| ophthalmophobia | syn. of scopophobia. [ID, CE] |
| optophobia | Fear of opening one’s eyes. [ID, WP] |
| ornithophobia | Fear of birds. [ID, CE] |
| orthophobia | Fear of propriety. [ID] |
| osmiophobia | Resistance (of cells) to staining with osmic acid. [ID] |
| osmophobia | syn. of olfactophobia. [ID] |
| osphresiophobia | syn. of olfactophobia. [ID] |
| ostraconophobia | Fear of shellfish. [ID, CE] |
| ouranophobia | syn. of uranophobia. [ID] |
| paedophobia | syn. of pedophobia. [ID] |
| pamphobia | syn. of pantophobia. [OED, ID] |
| panophobia | (1) syn. of pantophobia;
(2) Fear of fears. [OED, ID, WP] |
| panphobia | syn. of pantophobia. [OED, ID] |
| pantaphobia | syn. of hypophobia. [OED, ID] |
| panthophobia | syn. of nosophobia. [ID] |
| pantophobia | Fear of everything. [OED, ID, CE] |
| papaphobia | Fear of the Pope or the papacy. [OED, ID, CE, WP] |
| papyrophobia | Fear of paper. [OED, ID] |
| paralipophobia | Fear of neglecting a duty. [ID, CE] |
| paraphobia | Fear of sexual perversion. [ID, CE] |
| parasitophobia | Fear of parasites. [ID, CE] |
| paronomasiaphobia | Fear of puns. [WP] |
| parthenophobia | Fear of young girls or virgins. [ID, CE] |
| paterophobia | Fear of the Fathers (of the early Church). [OED] |
| pathophobia | syn. of nosophobia. [OED, ID] |
| patroiophobia | Fear of hereditary disease. [ID] |
| peccatiphobia | syn. of hamartophobia. [ID, CE] |
| peccatophobia | syn. of hamartophobia. [ID] |
| pediculophobia | Fear of lice. [OED, ID] |
| pediophobia | Fear of children. [ID, CE] |
| pedophobia | Fear of dolls or infants. [ID, CE] |
| peladophobia | Fear of becoming bald. [ID, CE] |
| pellagrophobia | Fear of pellagra (a disease caused by protein deficiency. [ID] |
| peniaphobia | Fear of poverty. [ID, CE] |
| pentheraphobia | Fear of one's mother-in-law. [ID, CE, WP] |
| phagophobia | Fear of eating. [ID, CE] |
| phalacrophobia | syn. of peladophobia. [ID] |
| phallophobia | Fear of the male genitals. [ID, CE] |
| pharmacophobia | Fear of medicinal drugs. [ID, CE] |
| phasmophobia | Fear of ghosts. [ID, CE] |
| phengophobia | syn. of heliophobia. [ID, CE] |
| philemaphobia | Fear of kissing. [ID, CE] |
| philematophobia | syn. of philemaphobia. [ID] |
| philophobia | Fear of love. [ID, CE, WP] |
| philosophobia | Fear of philosophy or philosophers. [OED, ID] |
| phlebophobia | Fear of blood tests. [WP] |
| phobia | A usually irrational fear, horror, or aversion to something. [OED] |
| phobologophobia | Fear of phobia words. [ID, WP] |
| phobophobia | Fear of fearing. [ID, CE] |
| phonophobia | syn. of glossophobia. [OED, ID] |
| photaugiaphobia | syn. of photaugiophobia. [ID] |
| photaugiophobia | Fear of photalgia (eye pain caused by light). [ID] |
| photophobia | Fear of light. [OED, ID, CE] |
| phronemophobia | Fear of thinking. [ID, WP] |
| phthiriophobia | syn. of pediculophobia. [ID] |
| phthisiophobia | syn. of tuberculophobia. [OED, ID] |
| phthisophobia | syn. of tuberculophobia. [ID] |
| placophobia | Fear of tombstones. [ID, CE] |
| pluviophobia | syn. of ombrophobia. [ID] |
| pneumatophobia | syn. of aerophobia. [OED, ID] |
| pnigerophobia | syn. of pnigophobia. [ID] |
| pnigophobia | Fear of choking or smothering. [ID, CE] |
| pocrescophobia | syn. of obesophobia. [ID] |
| pogonophobia | Fear of beards. [ID, CE] |
| poinephobia | Fear of punishment. [ID] |
| policophobia | Fear of the police. [WP] |
| politicophobia | Fear of politicians. [OED, ID, CE] |
| polyphobia | Fear of many things. [OED, ID] |
| ponophobia | Fear of fatigue. [ID, CE] |
| poperyphobia | syn. of papaphobia. [OED] |
| porphyrophobia | Fear of the colour purple. [ID] |
| potamophobia | Fear of rivers. [ID] |
| potomophobia | syn. of potamophobia. [CE] |
| potophobia | Fear of alcoholic drink. [ID] |
| primeisodophobia | Fear of losing one's virginity. [ID] |
| proctophobia | Fear of rectal disease. [ID, CE] |
| profundophobia | Fear of depth. [WP] |
| prosophobia | Fear of progress. [ID, CE, WP] |
| proteinphobia | Fear of protein foods. [ID] |
| psellismophobia | Fear of stuttering. [ID, CE] |
| pseudohydrophobia | Animal disease with symptoms similar to rabies. [ID] |
| psychophobia | Fear of minds. [ID] |
| psychrophobia | syn. of cheimaphobia. [OED, ID] |
| pteronophobia | Fear of feathers. [ID, CE, WP] |
| pyrexeophobia | syn. of febriphobia. [ID] |
| pyrexiophobia | syn. of febriphobia. [ID] |
| pyrophobia | Fear of fire. [OED, ID, CE] |
