さ, in hiragana, or サ in katakana, or sa in Romaji under Hepburn romanisation (IPA: ), is one of the Japanese kana, which each represent one mora.

Like き, the hiragana character may be written with or without linking the lower line to the rest of the character.

The character may be combined with a dakuten, changing it into ざ in hiragana, ザ in katakana, and za in Romaji. The pronunciation is also changed, to .

Kana

さ | さ | さ | さ | さ