Hwang Dong-hyuk (Korean: 황동혁; born May 26, 1971) is a South Korean filmmaker known for writing and directing the crime drama film Silenced (2011) and creating the Netflix survival drama series Squid Game (2021–2025). He won an Emmy for Outstanding Directing for a Drama Series in 2022 for directing the Squid Game episode "Red Light, Green Light", making him the first South Korean to win an Emmy in that category. Hwang received the Geumgwan Order of Cultural Merit, the highest decoration awarded to those who have contributed to culture and arts, in 2022.

Hwang Dong-hyuk was born and raised in Ssangmun-dong, Seoul, South Korea; he immersed himself in manhwa and manga, spending hours in comic book cafes. After he graduated from Seoul National University with a Bachelor of Arts in communications, he wrote and directed numerous short films including Our Sad Life and A Puff of Smoke. He then moved to Los Angeles to study for a Master of Fine Arts in Film Production at the University of Southern California.

In 2000, Hwang started his filmmaking career and completed two short films Heaven & Hell and Desperation (2000). His graduation thesis film was Miracle Mile (2004), a short starring Karl Yune as a Korean-American illegal taxi driver who helps his fare, a young Korean woman (played by Hana Kim) search for her brother who was adopted by Americans 20 years ago. Miracle Mile screened at over 40 international film festivals and won several awards, including the Directors Guild of America Student Film Award and Student Emmy Award.

For his feature film debut, Hwang returned to the topic of adoption in My Father (2007). Based on the true story of Korean-American adoptee Aaron Bates, the film is about a U.S. Army soldier stationed in Korea who appears on national television to search for his birth parents, then finds his father on death row for murder. Kim Yeong-cheol played the father opposite lead actor Daniel Henney, whom Hwang decided to cast despite the latter being typecast as a heartthrob. Henney and Kim were praised for their acting, as was Hwang for his non-melodramatic handling of forgiveness and acceptance, intertwined with issues of cultural identity and the death penalty.

Hwang's second film became one of the biggest stories in Korean cinema in 2011. Based on a novel by Gong Ji-young and starring Gong Yoo and Jung Yu-mi, The Crucible (also known as Silenced) depicts real-life events at the Gwangju Inhwa School for the deaf where young students were cruelly treated and sexually abused by their teachers and administrators. Hwang said he deliberated for about a month whether or not he should make the film, but decided to do it because "It had to be told." Hwang said, "I thought about two things when making this film. First, I wanted to let the world know about this horrific incident. Secondly, I wanted to expose the structural problems of society as revealed during the process of how the case was buried. The issues portrayed in the movie -- sexual violence against children, corrupt ties between police and influential families, negligence of duty by civil servants -- is not fictitious, but can be seen regularly on the daily news." The movie became a box-office hit in Korea, attracting 4.7 million viewers. But more significantly, it provoked widespread public anger and commentary, such that the case was reopened and lawmakers passed the "Dogani Bill" which abolishes the statute of limitations for sex crimes against minors and the disabled. Hwang said, "I took up filmmaking because I was so frustrated by all these unresolved social issues I saw. We can see through films how much we are changed by the world. You can't change society with just one movie, but looking at the repercussion of the release of this film, we can think about the power film has in terms of positively affecting society."

In a significant departure from his previous films, Hwang's third feature Miss Granny (titled Suspicious Girl in Korean) focuses on a 74-year-old woman who regains the appearance of her 20-year-old self (played by Na Moon-hee and Shim Eun-kyung, respectively), in a movie that straddles comedy, family drama, music and romance. Hwang said at the 2014 film's press conference, "With My Father and Silenced, I always seemed to be making social films with dark subject matter, but in reality, I am a fun person. This time I really wanted to make a happy and light film." Strong word of mouth propelled Miss Granny to the top of the box office chart, with more than 8.65 million admissions.

Based on Kim Hoon's novel Namhansanseong (the Korean title for the movie as well), The Fortress stars Lee Byung-hun and Kim Yoon-seok as rival advisors to King Injo at a critical moment during the Second Manchu invasion of Korea. A subtle tour de force in a totally different genre from Hwang's previous movies, it claimed both a popular and critical success with 3.8 million tickets sold in Korea, a distribution to 28 countries, and many awards across Asia.

Around 2008, Hwang had tried unsuccessfully to get investment for a different movie script that he had written, and he, his mother, and his grandmother had to take out loans to stay afloat, but still struggled amid the debt crisis within the country. He spent his free time in a Manhwabang (South Korean manga cafe) reading Japanese survival manga such as Battle Royale, Liar Game and Gambling Apocalypse: Kaiji. Hwang compared the characters' situation in these works to his own current situation and considered the idea of being able to join such a survival game to win money to get him out of debt, leading him to write a film script on that concept throughout 2009. Hwang stated, "I wanted to write a story that was an allegory or fable about modern capitalist society, something that depicts an extreme competition, somewhat like the extreme competition of life. But I wanted it to use the kind of characters we've all met in real life." Hwang feared the storyline was "too difficult to understand and bizarre" at the time. Hwang tried to sell his story to various Korean production groups and actors, but had been told it was too grotesque and unrealistic. Hwang put this script aside without any takers, and over the next ten years successfully completed three other films, including the crime drama film Silenced (2011) and the historical drama film The Fortress (2017).