↓

The arrow symbol ↓ may refer to:
 * The downward direction, a relative direction
 * The keyboard cursor control key, an arrow key
 * A downwards arrow, a Unicode arrow symbol
 * Logical NOR, operator which produces a result that is the negation of logical OR
 * An undefined object, in mathematical well-definition
 * A mathematical symbol for "approaching from above"
 * A comma category, in category theory
 * Down (game theory), a mathematical game
 * The ingressive sound, in phonetics
 * An APL function
 * "Decreased" (and similar meanings), in medical notation
 * The precipitation of an insoluble solid, in chemical notation