| Ai no Kotoba | |
| Cover: | RinaAiuchiAinoKotoba.jpg |
| Type: | single |
| Artist: | Rina Aiuchi |
| Album: | Thanx |
| B-Side: | Colorful Fingers Crossed |
| Genre: | J-pop |
| Label: | Giza Studio |
| Prev Title: | Friend |
| Prev Title2: | Sugao no mama |
| Prev Year: | 2008 |
| Next Title: | Story |
| Next Title2: | Summer Light |
| Next Year: | 2009 |
is a song by Japanese singer-songwriter Rina Aiuchi. It was released on 11 February 2009 through Giza Studio, as the third single from her seventh studio album Thanx. The single reached number seventeen in Japan and has sold over 5,506 copies nationwide.[1] The song served as the theme songs to the Japanese morning television shows, The Sunday Next and Joho Paradise.
|-! scope="row"| Japan (RIAJ)| | 5,506|-|}
| Region | Date | Format | Catalogue Num. | Label | Ref. |
|---|---|---|---|---|---|
| Japan | 11 February 2009 | CD | GZCA-4119 | Giza Studio | [2] |
| Digital download | [3] | ||||