Tsunami (plural: tsunamis kana tsunami; kubva muchiJapanese: 津波, lit. "harbour wave"; English pronunciation: /tsuːˈnɑːmi/), inozivikanwawo se seismic sea wave kana tidal wave, inhevedzano yemafungu mumvura yemvura inokonzerwa nekubviswa kwehuwandu hukuru hwemvura, kazhinji mugungwa kana dziva guru. Tsunami dzinogona kukonzerwa nokudengenyeka kwenyika kwakaitika pasi pegungwa kwakafanana neyakaitika muna 2004 paBoksing Day, kana kuti nokudonha kwenyika kwakafanana neyakaitika muna 1958 paLituya Bay, kuAlaska, kana kuti nokuputika kwemakomo akaita seSantorini. Musi waMarch 11, 2011, tsunami yakaitika pedyo neFukushima, kuJapan
ndokupararira muPacific Ocean.