Either/Or (disambiguation)

Either/Or is an influential book by philosopher Søren Kierkegaard.

Either/Or and related terms may also refer to:
 * Either/Or (book), a novel by Elif Batuman
 * Either/Or (album), music by Elliott Smith
 * Either/Or (TV series), a comedy game show
 * either...or and neither...nor, examples of correlative conjunctions in English
 * Exclusive or, the logical meaning of "either ... or ... but not both"
 * Logical disjunction, the logical meaning of "either ... or ... or both"
 * Either-or fallacy, another name for false dilemma
 * Either–or topology, a structure in mathematics