Nguyễn Hoàng Thiên

{{short description|Vietnamese tennis player}}

{{Infobox tennis biography

|name = Nguyễn Hoàng Thiên

|image =

|caption =

|fullname =

|country = {{VIE}}

|birth_date = {{birth date and age|df=yes|1995|3|12}}

|birth_place = Ho Chi Minh City, Vietnam

|residence = Bình Dương, Vietnam

|height = 1.80 m

|weight =

|retired = 2019 (last match 2017)

|plays = Right-handed (one handed-backhand)

|careerprizemoney = $5,442

|singlesrecord = 11–9 (at ATP Tour level, Grand Slam level, and in Davis Cup)

|singlestitles = 0 ITF

|highestsinglesranking = No. 1368 (18 June 2012)

|currentsinglesranking =

|doublesrecord = 2–2 (at ATP Tour level, Grand Slam level, and in Davis Cup)

|doublestitles = 1 ITF

|highestdoublesranking = No. 773 (24 October 2016)

|currentdoublesranking =

|updated = 13 November 2022

|medaltemplates-expand = Yes

|medaltemplates =

{{MedalSport | Men's Tennis}}

{{MedalCountry|{{VIE}}}}

{{MedalCompetition|Southeast Asian Games}}

{{MedalBronze | 2017 Kuala Lumpur | Doubles }}

}}

{{family name hatnote|Nguyễn|Thiên|lang=Vietnamese}}

Nguyễn Hoàng Thiên (born 12 March 1995) is a Vietnamese tennis player.

Nguyễn has a career high ATP singles ranking of 1368 achieved on 18 June 2012. He also has a career high ATP doubles ranking of 773 achieved on 24 October 2016.

Nguyễn represents Vietnam at the Davis Cup where he has a W/L record of 13–11.