Looking to watch Piranha? Joe Dante's 1978 Horror film is available through several streaming and digital platforms. It's currently streaming on Prime Video, fuboTV, Peacock, YouTube TV, Shout! Factory Amazon Channel, Shudder, Shudder Amazon Channel, Night Flight Plus, Midnight Pulp, Shudder Apple TV Channel, Cineverse Amazon Channel, Philo, AMC+, AMC+ Apple TV Channel, Fawesome, Plex Channel, Kanopy, Plex, Hoopla, The Roku Channel, Shout! Factory TV, Tubi, Pluto TV, Fandango at Home Free, and Cineverse. Rental options start at $2.99, available on Apple TV, Google TV, and YouTube. If you'd like to own it digitally, you can buy Piranha starting from $9.99 on Apple TV, Google TV, and YouTube.