T2ya

{{Infobox musical artist

| name = T2ya

| image =

| caption =

| background = non_vocal_instrumentalist

| birth_name = Tetsuya Hashinaga

| alias =

| birth_place =

| birth_date = May 14, 1982[http://people.zozo.jp/t2ya/ T2ya Biography]

| origin = Gunma Prefecture, Japan

| instrument = Electronic keyboard

| genre = Electropop, pop rock

| occupation = Lyricist, composer, record producer

| years_active = 1991–present

| label =

| associated_acts =

| website = {{url|t-infinity.jp/creator/t2ya}}

}}

T2ya, born {{nihongo|Tetsuya Hashinaga|橋長 哲也|Hashinaga Tetsuya}}, is a Japanese songwriter and keyboardist from Gunma Prefecture. In the 1990s, he supported the agency Rising Production, which was later renamed Vision Factory. He wrote both the music and the lyrics of Olivia Lufkin's "I.L.Y. (Yokubō)"{{cite web|url=http://www.jbook.co.jp/p/p.aspx/62359/s/~6b19cf0ce|title=I. L. Y. : Olivia|publisher=Jbook|accessdate=2010-05-15|language=ja}} and "Re-act."{{cite web|url=http://tombraider.excite.co.jp/music/disc/4988064203086/|title=Re-act / Olivia|publisher=Excite Japan|accessdate=2010-05-15|language=ja|url-status=dead|archiveurl=https://archive.today/20120715104819/http://tombraider.excite.co.jp/music/disc/4988064203086/|archivedate=2012-07-15}} He also composed Mika Nakashima's "One Survive."{{cite web|url=http://www.sonymusicshop.jp/m/item/itemShw.php?site=S&ima=4226&cd=AICL000001370|title=Mika Nakashima One Survive|publisher=Sony Music Shop|accessdate=2010-05-15|language=ja}}

In addition, T2ya wrote Aya Ueto's "Pureness," "Kizuna," "Hello" and "Personal."