Thumbs! is a collective term for the O Entertainment short films created by Steve Oedekerk using "Thumbation" technology, a process which combines live-action thumbs and CGI faces. The first short, Thumb Wars, was created as a television special and spawned the rest of the series.

Each filmette is available on DVD, with exclusive extra footage on the Thumb Wars/Thumbtanic Double Feature. The entire series is available in a box set called All Thumbs, which does not include the Double Feature.

An ongoing joke in the series is the appearance of a one-eyed thumb, who appears in each filmette to give his signature line of 'eh-hoo'.