Tidal

Tidal is the adjectival form of tide.

Tidal may also refer to:
 * Tidal (album), a 1996 album by Fiona Apple
 * Tidal (king), a king involved in the Battle of the Vale of Siddim
 * TidalCycles, a live coding environment for music
 * Tidal (service), a music streaming service
 * Tidal: Occupy Theory, Occupy Strategy, a magazine associated with the Occupy Wall Street movement