YA, yA, or Ya may refer to:
Yahoo! () is an American web services provider headquartered in Sunnyvale, California, and owned by Verizon Media.
Yazidis (also written as Yezidis) ( (listen) are a mostly Kurmanji–speaking ethnoreligious group, or an ethnic Kurdish minority indigenous to Iraq, Syria and Turkey who are strictly endogamous.
Yakuza (Japanese: ヤクザ, IPA: [jaꜜkɯza]), also known as gokudō (極道, "the extreme path", IPA: [gokɯꜜdoː]) are members of transnational organized crime syndicates originating in Japan.
The Yangtze or Yangzi (English: or ) is the longest river in Asia, the third-longest in the world and the longest in the world to flow entirely within one country.
Yakuza, known in Japan as Ryū ga Gotoku (龍が如く, Like a Dragon, Japanese: [ɾʲɨᵝː ɡa̠ go̞to̞kɯ̟ᵝ]), is an action-adventure beat 'em up video game franchise created, owned and published by Sega.