Mylene Lilibeth Inocencio Dizon (Tagalog pronunciation: [ˈdɪsɔn]; born September 6, 1976) is a Filipino actress. Known for her versatile work in independent film features and mainstream productions, she has received various accolades, including a Gawad Urian, two Luna Awards, and a Cinemalaya Independent Film Festival Award, in addition to nominations for two FAMAS Awards and a WorldFest-Houston International Film Festival Award.

Dizon made her screen debut in the youth oriented series Gimik (1996). The following year, she portrayed an assaulted woman in the crime drama Calvento Files: The Movie, where she won the Star Awards for New Movie Actress of the Year. She played a supporting role in the teen drama Tabing Ilog (1999) and starred as an abused woman during the Japanese occupation in the war drama Gatas... Sa Dibdib ng Kaaway (2001), for which she received nominations for a FAMAS and Gawad Urian for Best Actress. She received wider audience for her role as Sally, the main antagonist in the romantic drama Sa Dulo ng Walang Hanggan (2001). She received praises for her portrayal of a liberated woman entangled in a forbidden affair in Rome and Juliet (2006), for which she won Best Actress for a Cinema One Originals Digital Film Festival, and nominations for a Gawad Urian and Golden Screen Award for Best Actress.

Dizon also appeared in the romantic family drama Ploning (2008), where she received nominations for a Golden Screen and Gawad Pasado for Best Supporting Actress. Dizon received critical acclaim for her role as an opulent woman diagnosed with cancer in the independent drama 100 (2008), for which she won a Luna and Gawad Urian for Best Actress. She starred in the psychological drama Aparisyon in 2012 and became her fourth Gawad Urian nomination. Dizon's film appearances in the ensuing years including the action thriller 10,000 Hours (2013) and the epic war Heneral Luna (2015) have earned her nominations from major award-giving bodies in the Philippines. In 2019, she received a nomination for Best Actress at the WorldFest-Houston International Film Festival for her role in the Belle Douleur and won her second Luna Award for Best Supporting Actress in the family drama Family Matters (2022).

Mylene Lilibeth Inocencio Dizon was born on September 6, 1976, in Manila, Philippines to Seafin Dizon and Arlene Inocencio. She is the youngest of four children. After graduating from high school, she enrolled in De La Salle University, pursuing a bachelor's degree in communication arts. She stayed in the United States for four months after her family migrated. Dizon eventually went back to the Philippines to pursue a career in the show business. She initially appeared in a number of commercials and soon auditioned in ABS-CBN's talent agency Star Magic.

Dizon began her acting career after she was launched as one of Star Circle's second batch members by the talent agency Star Magic, along with Diether Ocampo, Patrick Garcia and Marvin Agustin. She made her screen debut in the teen series Gimik (1996) where she starred with an ensemble cast that included Judy Ann Santos, Marvin Agustin, Diether Ocampo, and G. Toengi. Dizon next appeared in two productions in 1997. She had a supporting role in the drama Kulayan Natin ang Bukas and the thriller drama Calvento Files: The Movie. She won the PMPC Star Award for New Movie Actress of the Year for her performance in the latter. The following year, she appeared in two productions. She played a supporting role in the drama Miguel/Michelle and starred in the horror anthology Magandang Hatinggabi. She next appeared in the teen drama Tabing Ilog (1999). That year, she reprised her role in the film adaptation of GIMIK: The Reunion.

In 2001, Dizon starred opposite Jomari Yllana in the war drama Gatas... Sa Dibdib ng Kaaway, which was the Philippine submission for Best Foreign Language Film at the 74th Academy Awards. The film was a critical success, earning her Best Actress nominations for FAMAS and Gawad Urian. Dizon earned wider reception as Sally, the main antagonist in the drama Sa Dulo ng Walang Hanggan. In 2002, she appeared in three productions. First is in the independent film Utang ni Tatang and second is a supporting role in the action adventure Ang Agimat: Anting-Anting ni Lolo. Third is an antagonist role in the comedy superhero Super B starring Rufa Mae Quinto. Dizon's work in the following years has been mainly in television. She played supporting roles in the action romantic Basta't Kasama Kita, the sitcom All Together Now, and her first series under GMA Network, Narito ang Puso Ko. In 2005, she played the role of a social worker in the inspirational drama Mga Anghel na Walang Langit.

Dizon next starred with Andrea del Rosario in the romantic drama Rome & Juliet (2006). The film tackles issues about forbidden affairs and sexual norms. For her performance, she won Best Actress at the Cinema One Originals Digital Film Festival and received nominations from Gawad Urian and Golden Screen Awards. Also in 2006, she played supporting roles in television dramas Agawin Mo Man ang Lahat, Ang Kasagutan, Mars Ravelo's Captain Barbell and sitcom Bahay Mo Ba 'To?. Dizon played Sofia Santos, the non-biological mother of Charming (played by Eunice Lagusad) in Princess Charming from January 29 to April 27, 2007, as antagonist then she next appeared as one of the villainess in the post-apocalyptic sci-fi Resiklo, an entry to the 2007 Metro Manila Film Festival. The following year, she appeared in the romantic drama Ploning. It earned Dizon Best Supporting Actress nominations from Golden Screen and Gawad Pasado Awards. She next starred with an ensemble cast as an evil werewolf and vampire-like creature in the tenth horror anthology Shake, Rattle & Roll X. It grossed ₱119 million, becoming the highest grossing installment of the film series. Also in 2008, she starred as a woman with cancer in the independent film 100. Dizon received widespread acclaim for her performance, winning her first Best Actress trophies at the Luna, Cinemalaya Independent Film Festival and Gawad Urian, including nominations for a FAMAS and Star Awards for Movies. Dizon next portrayed Dyangga, the wicked queen of mermaids and main antagonist in the fantasy drama Dyesebel (2008).

The following year, she made a guest appearance in the drama May Bukas Pa and was cast in a supporting role in Tayong Dalawa. Also in 2009, she was cast in the romantic comedy Status: Single. In 2010, she was handpicked by director Jose Javier Reyes in the sequel Working Girls. The same year, Dizon was tapped to play the role of Susan David in the remake Mara Clara. She was next cast in the series Budoy (2011) and made a special participation in Kahit Puso'y Masugatan (2012). Dizon also appeared in two film productions in 2012. She starred alongside Jodi Sta. Maria in the psychological drama Aparisyon. For her portrayal, she received her fourth Gawad Urian nomination for Best Supporting Actress. She next portrayed the role of a social climber in the comedy Sosy Problems. Her performance earned her nominations for a Star Award and Golden Screen Awards. In 2013, she made special participation in the fantasy drama Juan dela Cruz and its prequel My Little Juan, including supporting roles in Kahit Konting Pagtingin and Huwag Ka Lang Mawawala. The same year, she also starred in the drama Bamboo Flowers and played secondary roles in mainstream productions Bakit Hindi Ka Crush Ng Crush Mo? and 10,000 Hours. The latter earned her a Best Supporting Actress nomination at the Metro Manila Film Festival.