| It's a Wonderful World | |
| Type: | Album |
| Artist: | Mr. Children |
| Cover: | It's a Wonderful World - Mr. Children.jpg |
| Released: | May 10, 2002 |
| Genre: | Pop rock, power pop, progressive rock, alternative rock |
| Length: | 69:28 |
| Label: | Toy's Factory |
| Producer: | Mr. Children Takeshi Kobayashi |
| Prev Title: | Mr. Children 1996–2000 |
| Prev Year: | 2001 |
| Next Title: | Shifuku no Oto |
| Next Year: | 2004 |
It's a Wonderful World is the ninth studio album released by Mr. Children, released on May 10, 2002, which marks the tenth anniversary of their first album's release.