Lý Hoàng Nam (born 25 February 1997) is a Vietnamese tennis player. 
Nam has a career high ATP singles ranking of 231 achieved on November 28, 2022. He also has a career high ATP doubles ranking of 385 achieved on 12 November 2018. 
He won the 2015 Wimbledon Championships – Boys' doubles title along with his Indian partner Sumit Nagal, defeating Reilly Opelka and Akira Santillan in the final, becoming the first Vietnamese tennis player to win a Grand Slam trophy. 
Nam represents Vietnam at the Davis Cup, where he has a win–loss record of 25–10. 
  Junior Grand Slam finals
 Boys' doubles
  ATP Challenger and ITF Future/World Tennis Tour finals
 Singles: 22 (11–11)
    |   | Legend |   | ATP Challenger Tour (0–1) |   | ITF Futures/World Tennis Tour (11–10) |  |   | Finals by surface |   | Hard (11–11) |   | Clay (0–0) |   | Grass (0–0) |  | 
   | Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | 
  | Win | 1–0 | Sep 2016 | Vietnam F5, Thủ Dầu Một | Futures | Hard |  Masato Shiga | 6–4, 6–2 | 
  | Win | 2–0 | Jun 2017 | Thailand F3, Hua Hin | Futures | Hard |  Yannick Jankovits | 2–6, 7–6(7–5), 6–4 | 
  | Loss | 2–1 | Nov 2017 | Vietnam F2, Thủ Dầu Một | Futures | Hard |  Jonathan Gray | 6–7(4–7), 3–6 | 
  | Loss | 2–2 | Mar 2018 | India F3, Chandigarh | Futures | Hard |  Prajnesh Gunneswaran | 3–6, 4–6 | 
  | Loss | 2–3 | May 2018 | Vietnam F1, Thừa Thiên Huế | Futures | Hard |  Tseng Chun-hsin | 3–6, 6–7(0–7) | 
  | Loss | 2–4 | Oct 2018 | Vietnam F4, Tây Ninh | Futures | Hard |  Roman Safiullin | 6–7(7–9), 4–6 | 
  | Loss | 2–5 | Nov 2018 | Vietnam F5, Tây Ninh | Futures | Hard |  Roman Safiullin | 6–7(5–7), 4–6 | 
  | Loss | 2–6 | Oct 2019 | M25 Tây Ninh, Vietnam | World Tennis Tour | Hard |  Daniel Nguyen | 3–6, 5–7 | 
  | Win | 3–6 | Oct 2021 | M15 Sharm El Sheikh, Egypt | World Tennis Tour | Hard |  Hady Habib | 6–2, 6–4 | 
  | Win | 4–6 | Nov 2021 | M15 Cancún, Mexico | World Tennis Tour | Hard |  Giles Hussey | 6–4, 6–4 | 
  | Win | 5–6 | Dec 2021 | M15 Cancún, Mexico | World Tennis Tour | Hard |  Rubin Statham | 6–4, 6–4 | 
  | Loss | 5–7 | Mar 2022 | M25 Toulouse-Balma, France | World Tennis Tour | Hard |  Kenny de Schepper | 3–6, 3–6 | 
  | Loss | 5–8 | Apr 2022 | M15 Chiang Rai, Thailand | World Tennis Tour | Hard |  Hong Seong-chan | 3–6, 6–3, 5–7 | 
  | Win | 6–8 | Jun 2022 | M15 Tây Ninh, Vietnam | World Tennis Tour | Hard | .svg.png) Thomas Fancutt | 6–3, 6–4 | 
  | Win | 7–8 | Jun 2022 | M15 Tây Ninh, Vietnam | World Tennis Tour | Hard |  Dominik Palan | 7–6(7–3), 6–2 | 
  | Win | 8–8 | Jun 2022 | M15 Tây Ninh, Vietnam | World Tennis Tour | Hard |  Digvijay Pratap Singh | 4–6, 7–5, 6–4 | 
  | Win | 9–8 | Jul 2022 | M15 Kuala Lumpur, Malaysia | World Tennis Tour | Hard |  Yuta Shimizu | 7–5, 6–3 | 
  | Loss | 9–9 | Aug 2022 | M15 Kuching, Malaysia | World Tennis Tour | Hard |  Yuta Shimizu | 1–6, 2–6 | 
  | Loss | 9–10 | Aug 2022 | Nonthaburi, Thailand | Challenger | Hard |  Valentin Vacherot | 3–6, 6–7(4–7) | 
  | Loss | 9–11 | Oct 2022 | M25 Tây Ninh, Vietnam | World Tennis Tour | Hard |  Hsu Yu-hsiou | 3–6, 2–6 | 
  | Win | 10–11 | Oct 2022 | M25 Tây Ninh, Vietnam | World Tennis Tour | Hard |  Ajeet Rai | 6–4, 6–4 | 
  | Win | 11–11 | Feb 2024 | M15 Nakhon Si Thammarat, Thailand | World Tennis Tour | Hard |  Sander Jong | 6–7(4–7), 7–6(7–2), 6–4 | 
 Doubles: 14 (6–8)
    |   | Legend |   | ATP Challenger Tour (0–0) |   | ITF Futures Tour (6–8) |  |   | Finals by surface |   | Hard (6–8) |   | Clay (0–0) |   | Grass (0–0) |  | 
   | Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score | 
  | Loss | 0–1 | Sep 2016 | Vietnam F4, Thủ Dầu Một | Futures | Hard |  Ouyang Bowen |  Ahmed Deedat Abdul Razak 
  Chiu Yu Hsiang | 6–4, 3–6, [7–10] | 
  | Win | 1–1 | Sep 2016 | Vietnam F5, Thủ Dầu Một | Futures | Hard |  Nguyễn Hoàng Thiên |  Gao Xin 
  Shintaro Imai | 7–6(7–4), 7–6(7–4) | 
  | Win | 2–1 | Nov 2016 | Vietnam F9, Thủ Dầu Một | Futures | Hard |  Chen Ti |  Moon Ju-hae 
  Noh Sang-woo | 6–2, 4–6, [10–5] | 
  | Loss | 2–2 | Jun 2017 | Singapore F3, Singapore | Futures | Hard |  Yuichi Ito |  Francis Alcantara 
  Sem Verbeek | 6–7(3–7), 2–6 | 
  | Win | 3–2 | Jul 2017 | China F12, Shenzhen | Futures | Hard |  Sun Fajing |  Francis Alcantara 
  Karunuday Singh | 6–4, 6–4 | 
  | Loss | 3–3 | Oct 2017 | Thailand F8, Nonthaburi | Futures | Hard |  Yuichi Ito |  Pruchya Isaro 
  Masato Shiga | 3–6, 1–6 | 
  | Loss | 3–4 | Mar 2018 | India F8, Kolkata | Futures | Hard |  Carlos Boluda-Purkiss |  Arjun Kadhe 
  Vijay Sundar Prashanth | 2–6, 7–5, [5–10] | 
  | Loss | 3–5 | May 2018 | Vietnam F1, Thừa Thiên-Huế | Futures | Hard |  Lê Quốc Khánh |  Wong Chun-hun 
  Yeung Pak-long | 6–7(5–7), 4–6 | 
  | Win | 4–5 | May 2018 | Vietnam F2, Thừa Thiên-Huế | Futures | Hard |  Nguyễn Văn Phương |  Wong Chun-hun 
  Yeung Pak-long | 3–6, 6–3, [10–8] | 
  | Win | 5–5 | Oct 2018 | Vietnam F4, Tây Ninh | Futures | Hard |  Lê Quốc Khánh |  Francis Alcantara 
  Markus Eriksson | 6–4, 6–7(6–8), [12–10] | 
  | Loss | 5–6 | Nov 2018 | Vietnam F5, Tây Ninh | Futures | Hard |  Roman Safiullin |  Francis Alcantara 
  Markus Eriksson | 7–5, 4–6, [7–10] | 
  | Loss | 5–7 | Jun 2019 | M25 Hong Kong | World Tennis Tour | Hard | .svg.png) Blake Ellis |  Shintaro Imai 
  Yuta Shimizu | 4–6, 4–6 | 
  | Win | 6–7 | Jun 2022 | M15 Tây Ninh | World Tennis Tour | Hard |  Francis Alcantara |  Park Ui-sung 
  Son Ji-hoon | 6–3, 6–1 | 
  | Loss | 6–8 | Jun 2022 | M15 Tây Ninh | World Tennis Tour | Hard |  Lê Quốc Khánh |  Shohei Chikami 
  Masamichi Imamura | 5–7, 1–6 | 
 
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