Finding Nemo is a 2003 American computer-animated comedy film written and directed by Andrew Stanton, released by Walt Disney Pictures, and the fifth film produced by Pixar Animation Studios.

Andrew Stanton, who helped write Toy Story and Monsters, Inc., co-wrote and directed this computer-animated comedy-adventure about finding a very small fish in a very large ocean. Marlin (voice of Albert Brooks) is a more-than-slightly paranoid Clown Fish who is extremely devoted to his young son, Nemo (voice of Alexander Gould), the only survivor after an undersea predator swallowed up Nemo's mother and her other offspring. It's not Marlin's nature to explore unfamiliar waters, but when he and Nemo are accidentally separated near the Great Barrier Reef en route to Nemo's first day of fish school, Marlin gathers his courage and sets out to find his son. What Marlin doesn't know, however, is that while Nemo was looking at a boat passing on the surface, he was caught in a net and given a new home in a dentist's aquarium. As Marlin searches for his son, he makes friends with a friendly but absent-minded Regal Blue Tang named Dory (voice of Ellen DeGeneres), a Great White Shark named Bruce (voice of Barry Humphries) who is trying to cut fish out of his diet, a beach-rat Sea Tortoise named Crush (voice of Andrew Stanton), and Nigel (voice of Geoffrey Rush), a Pelican who can take Marlin's search from the ocean to dry land. Finding Nemo's impressive voice cast also includes Willem Dafoe, Allison Janney, Eric Bana, Stephen Root, and Brad Garrett.

Finding Nemo is Pixar's first film to be released in cinemas in the northern hemisphere summer. The film was re-released for the first time in 3D on September 14, 2012, and it was released on Blu-ray on December 4, 2012. A sequel is currently in development, set to be released in 2016.

The film received extremely positive reviews and won the Academy Award for Best Animated Feature. It was the second highest-grossing film of the year, earning a total of $921 million worldwide. Finding Nemo is also the best-selling DVD of all time, with over 40 million copies sold as of 2006, and was the highest-grossing G-rated film of all time before Pixar's own Toy Story 3 overtook it. It is also the 22nd highest-grossing film of all time, as well as the 3rd highest-grossing animated film. In 2008, the American Film Institute named it the tenth greatest animated film ever made during their Top 10.