Tiger King (subtitled in marketing as Tiger King: Murder, Mayhem, and Madness for its first season, Tiger King 2 for its second season and Tiger King: The Doc Antle Story for its third season) is an American true crime documentary television series about the life of former zookeeper and convicted felon Joe Exotic. The first season was released on Netflix on March 20, 2020. A second season, Tiger King 2, was announced in September 2021 and was released on November 17, 2021, while a third season, Tiger King: The Doc Antle Story, was announced on December 3, 2021, and released one week later on December 12. The series focuses on the small but deeply interconnected society of big cat conservationists such as Carole Baskin, owner of Big Cat Rescue, and collectors such as Exotic, whom Baskin accuses of abusing and exploiting wild animals.

Season 1 received positive reviews from critics, and according to Nielsen ratings, was watched by 34.3 million people over its first ten days of release, ranking as one of Netflix's most successful releases to date, partly due to its release amid the early months of the COVID-19 pandemic, and also inspired several memes online. Despite its success and popularity, the season received criticism from conservation and animal rights groups for its framing and inaccuracies related to private breeding and wildlife conservation issues. A special aftershow hosted by Joel McHale was released on April 12, 2020, with McHale interviewing several of its subjects about Exotic and the series itself. The second and third seasons in contrast received mostly negative reviews from fans and critics, and the former was subject of a lawsuit by Carole and Howard Baskin over footage used in the series.

The series explores the deeply interconnected community of big cat conservationists and collectors in America, and the private zoos and animal sanctuaries they have set up for the care and public display of these animals.

The series' primary subject in the first season is "Tiger King" Joe Exotic, the eccentric owner of the G.W. Zoo in Wynnewood, Oklahoma, and follows his bitter years-long feud with Carole Baskin, CEO of Big Cat Rescue in Tampa, Florida. The season later records the events leading up to Exotic's conviction under federal murder-for-hire statutes, when it comes to light that he paid a hitman to murder Baskin; his convictions also included violations of the Lacey Act and Endangered Species Act, and resulted in a 22-year federal prison sentence.

The second season covers the immediate aftermath of Exotic's imprisonment, as well as exploring further theories surrounding the disappearance of Don Lewis. It also explores the downfall of big cat collectors Tim Stark and Jeff Lowe. The ending of the season features a tribute to Erik Cowie, an employee at the G.W. Zoo who died in September 2021.

The series' primary subject in the third season is Mahamayavi Bhagavan "Doc" Antle, a rival of Exotic's and Baskin's, exploring his cult of employment.

On review aggregator Rotten Tomatoes, the first series holds an approval rating of 89% based on 75 reviews, with an average rating of 7.88/10. The site's critics consensus reads: "A bizarre true crime story you have to see to believe, Tiger King is a messy and captivating portrait of obsession gone terribly wrong." On Metacritic, which assigns a weighted average score to reviews from mainstream publications, the series has an average score of 75 out of 100, based on 13 critics, indicating "generally favorable reviews".

Variety magazine's Caroline Framke called the season "messy yet compelling" and that for "those who love Netflix's particular flavor of true crime and docuseries, [...] Tiger King will undoubtedly scratch a particular itch." Joshua Rivera at The Verge said that "[e]very minute of Tiger King yields some new surprise, an unbelievable turn or charismatic stranger with incredible stories to tell."