| Hiragana Image: | Japanese_Hiragana_kyokashotai_RO.svg |
| Katakana Image: | Japanese_Katakana_kyokashotai_RO.svg |
| Transliteration: | ro |
| Hiragana Manyogana: | 呂 |
| Katakana Manyogana: | 呂 |
| Other Manyogana: | 路 漏 呂 侶 |
| Unicode: | U+308D, U+30ED |
| Flag1: | 7 |
| Flag2: | 8 |
| Footnote: | These Man'yōgana originally represented morae with one of two different vowel sounds, which merged in later pronunciation |
| Spelling: | ローマのロ Rōma no "ro" |
ろ, in hiragana, or ロ in katakana, (romanised as ro) is one of the Japanese kana, each of which represents one mora. The hiragana is written in one stroke, katakana in three. Both represent pronounced as /ja/ and both originate from the Chinese character 呂. The Ainu language uses a small ㇿ to represent a final r sound after an o sound (オㇿ or). The combination of an R-column kana letter with handakuten ゜ – ろ゚ in hiragana and ロ゚ in katakana – was introduced to represent [lo] in the early 20th century.
| Form | Rōmaji | Hiragana | Katakana |
|---|---|---|---|
| Normal r- (ら行 ra-gyō) | ro | ろ | ロ |
| rou roo rō | ろう, ろぅ ろお, ろぉ ろー | ロウ, ロゥ ロオ, ロォ ロー |
| ろ / 口 in Japanese Braille | ||||
|---|---|---|---|---|
| ろ / 口 ro | ろう / 口ー rō | Other kana based on Braille ろ | ||
| りょ / リョ ryo | りょう / リョー ryō | |||