Egghead is an anti-intellectual epithet.

Egghead may also refer to:

• Egghead (DC Comics)
• Egghead (Marvel Comics)
• Egghead (Looney Tunes)
• Egghead Jr. (Looney Tunes)
• Eggheads (TV series), a British quiz show
• Egghead Software, a technology company based in Bellevue WA, USA
• Manolo the Egghead, a famous series of prank phone calls
• Eggheads, a series of public art sculptures by Robert Arneson
• "Eggheads", the eighth Sonic Boom episode
• "Eggheads" (Sliders), an episode of the TV show Sliders
• Egghead: Or, You Can't Survive on Ideas Alone, a poetry book by Bo Burnham

• Hypospadic
• Hyposplenia
• Hyposplenism
• Hypospray
• Hypostasis
• Hypostasis (Neoplatonism)
• Hypostatically
• Hypostatic union
• Hypostatic Union
• Hypostatization
• Hypostomus
• Hypostomus plecostomus
• Hypostomus punctatus
• Hypostyle
• Hypostyle Hall
• Hyposulfite of Soda
• Hyposulphite of Soda
• Hypoteneuse
• Hypotension
• Hypotenuse
• Hypothalamic
• Hypothalamic dysfunction
• Hypothalamic-pituitary dysfunction
• Hypothalamic suppression
• Hypothalamic–pituitary–adrenal axis