Leonardus Jonatan Christie (born 15 September 1997) is an Indonesian badminton player specializing in the singles discipline affiliated with the Tangkas Specs club.

Although still competing in the junior tournament, Christie again has reached the finals of the senior event in the 2014 Indonesia International Challenge, but he has not managed to defend his title after being defeated by the Korean veteran Lee Hyun-il by 5 sets, 10–11, 11–9, 11–5, 8–11, 3–11.

[10] In May, he advanced to the finals of the New Zealand Open, but was beaten by two-time Olympic champion Lin Dan in straight games.

[11] At the 2018 Asian Games in Jakarta, he won 21–18, 20–22, 21–15 over Chou Tien-chen and took the badminton men's singles gold medal for Indonesia.

He played at the Malaysia Masters, but had to defeat in the second round to reigning Olympic champion Chen Long, the head-to-head record between the players stood at 0–6.

[16][17] In April, he advanced to the semi-finals of the Malaysia Open beating World number 1 Kento Momota in the second round, and Viktor Axelsen in the quarter-finals, both in straight games.

[32] He made up for his less than favorable performance in the previous tournaments at the 2020 Thomas Cup,[33] notably sealing Indonesia's victory against Denmark at the semifinals in a 100-minute match against Anders Antonsen and against China in the finals against Li Shifeng.

[43] Despite a few more early exits, Christie managed to qualify for the 2022 BWF World Tour Finals and reached the semifinals, where he was defeated by teammate and eventual runner-up Anthony Sinisuka Ginting.

[46] Christie then won the Indonesia Masters after beating his teammate Chico Aura Dwi Wardoyo, thus securing his first ever Super 500 title and creating the tournament's first all-Indonesian men's singles final since 2013.

[58] In his third appearance at the Asian Games, he was unable to defend his title after a first round loss to Chou Tien-chen, preceded by an upset against South Korea's Lee Yun-gyu as the second singles at the men's event.

[62] He advanced to the quarterfinals of Kumamoto Masters, but was still unable to overcome Viktor Axelsen, thus ending his winning streak in matches going into three games in 2023.

[64] Christie's 2024 campaign started with consecutive early exits, including at the Indonesia Masters[65] and the French Open[66] where he was defending champion.

However, he managed to improve his results at the All England Open, where he overcame Lakshya Sen in the semi-finals to create the first all-Indonesian men's singles final in the tournament since Hariyanto Arbi and Ardy Wiranata in 1994.

[67] He overcame compatriot Anthony Sinisuka Ginting to win his first Super 1000 title and become Indonesia's first All England men's singles champion in 30 years.

[69] Christie was the 2nd men's singles pick at the Thomas Cup and achieved an impressive 100% winning record against all of his opponents during the event.

[70] Christie would then bow out of the Singapore and Indonesia Opens, suffering first round exits to Chou Tien-chen and Leong Jun Hao respectively.

He donated 1.5 billion Rupiah from winning the 2018 Asian Games to build a mosque and a school in Lombok after an earthquake in the same year.

[79] He has also raised funds for various causes, such as for clean water in East Nusa Tenggara, Indonesian citizens affected by the COVID-19 pandemic, victims of the Semeru eruption, and education for children at the Bantar Gebang waste area.

[80] In January 2023, he initiated a scholarship named Beasiswa Jalincita to fund the education and capacity building of selected recipients.

[82] The film, directed by Ari Sihasale and dedicated to the legendary Liem Swie King, also featured cameos by many notable badminton players such as King himself, Hariyanto Arbi, Hastomo Arbi, Ellen Angelina, Ivana Lie, Rosiana Tendean, Maria Kristin Yulianti, Fransisca Ratnasari, and in their youth, Kevin Sanjaya Sukamuljo, Rafiddias Akhdan Nugroho, Cisita Joity Jansen, Uswatun Khasanah, and Intan Dwi Jayanti.