Knock Knock
- අවුරුදු: 1940
- රට: United States of America
- ප්රභේදය: Animation, Comedy
- ශබ්දාගාර: Walter Lantz Productions
- මූල පදය: roof, cartoon bear, irritation, cartoon bird, noise, cartoon panda, cartoon woodpecker
- අධ්යක්ෂක: Alex Lovy, Walter Lantz
- කාස්ට්: Sara Berner, Mel Blanc