YA, yA, or Ya may refer to:
Yahoo! is a web services provider, wholly owned by Verizon Communications through Oath Inc. and headquartered in Sunnyvale, California.
The Yazidis or Yezidis ( yə-ZEE-dees) (Northern Kurdish: Êzidî, IPA: [eːzɪˈdiː]; Central Kurdish: ئێزیدی) are a Kurdish religious minority or an ethno-religious group indigenous to northern Mesopotamia (see also Ezidkhan) who are strictly endogamous.
Yahoo Mail is a web-based email service, launched in 1997 through the American parent company Yahoo. Yahoo Mail provides four different email plans: three for personal use (Basic, Plus, and Ad Free) and another for businesses.
The Yangtze (English: or ), which is 6380 km long, is the longest river in Asia and the third-longest in the world.
Yakuza (ヤクザ, [jaꜜkɯza]), also known as gokudō (極道, "the ultimate path"), are members of transnational organized crime syndicates originating in Japan.
Yakuza, known in Japan as Ryū ga Gotoku (龍が如く, Like a Dragon), is an open world action-adventure beat 'em up video game franchise created, owned and published by Sega.