'や', in hiragana, or 'ヤ' in katakana, is one of the Japanese kana, which each represent one mora. Hiragana is written in three strokes, while the katakana is written in two. Both are pronounced (IPA) . Their shapes have origins in the character 也.
When small and accompanied by an -i kana, this kana represents not a separate sound but a modification of that of another (see yōon).