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"Welcome, class. It is as the yolks foretold... Today we shall be practising the art of Ovomancy. Try not to disturb the eggs before they are to be cracked. The egg can foretell a great deal, if you know what to look for..."
Sybill Trelawney introducing her students to Ovomancy[src]

An egg cracked for the practise of Ovomancy

Ovomancy was a type of divination that involved cracking open eggs and observing which way the yolks fell.[1]


Ovomancy was thought to have originated in Ancient Greece.[1]

During the 1989–1990 school year at Hogwarts School of Witchcraft and Wizardry, Professor Sybill Trelawney taught sixth-year students in Divination class about Ovomancy.[1] Professor Trelawney had her seventh-year students revise Ovomancy in the 1990–1991 school year in preparation for their upcoming Nastily Exhausting Wizarding Tests.[2]

Robert Hilliard, a Ravenclaw Prefect in the 1990s, informed first-years who had just been Sorted into Ravenclaw that this was not considered an unusual pastime within the House. In fact, according to him, not only would other Ravenclaws have no trouble with someone "spend[ing] [their] days and nights" practising ovomancy in a corner of the common room, but one would "probably find a few people to help."[3]


Ovomancy comes from the Latin word 'ovo', meaning 'egg'.


Notes and references

  1. 1.0 1.1 1.2 Harry Potter: Hogwarts Mystery, Year 6, Chapter 44 (The Perfect Party) - Divination Lesson "Ovomancy"
  2. Harry Potter: Hogwarts Mystery, Year 7, Chapter 38 (Tensions Rise)
  3. Pottermore introduction for Ravenclaws (transcription available here)
Trelawney's first Divination lesson in the trio's third year.jpg
Professors: Sybill Trelawney · Firenze
Known Seers: Calchas · Cassandra Vablatsky · Cassandra Trelawney · Gellert Grindelwald · Inigo Imago · Johan Hoffman · Liz Tuttle's mother · Mopsus · Professor Mopsus · Susie Sooth · Tycho Dodonus · Unidentified Canadian Seer · Unidentified female Seer · Unidentified male Seer
Textbooks: The Dream Oracle · Unfogging the Future
Methods: Astrology · Bibliomancy · Capnomancy · Cartomancy · Catoptromancy · Crystal-gazing · Crystal ball · Dream interpretation · Fire-omens · Heptomology · Horoscope · Ichthyomancy · Myomancy · Ornithomancy · Orrery · Ovomancy · Palmistry · Personal chart · Phyllomancy · Prophecy · Rune stone · Scrying mirror · Tarot cards · Tessomancy · Xylomancy
Divination at Hogwarts: Divination (class) · Divination Classroom · Divination staircase · Sybill Trelawney's office · Classroom 11 · Xylomancy (class)