Lee Jeong-eun (Korean: 이정은; born February 7, 1981), better known by the stage name Lee Bong-ryun (Korean: 이봉련), is a South Korean character actress. In 2020, Lee was cast as Princess Hamlet in the gender-blind production of Shakespeare's Hamlet for the 70th anniversary of National Theater Company of Korea. For this role, she won the 57th Baeksang Arts Awards for Best Actress in a Play. She is also frequently cast in other notable productions by the National Theater Company of Korea.

Lee started her career on stage in 2005 in Daehangno, performing in plays and musicals. Since 2012, she has appeared in supporting roles in various films and television dramas. Her notable screen works includes the films Burning, Exit, and Kim Ji-young, Born 1982, as well as the series Hometown Cha-Cha-Cha, Crash Course in Romance, and Resident Playbook.

Lee Bong-ryun was born as Lee Jeong-eun on February 7, 1981, in Pohang, North Gyeongsang Province, South Korea. Her father worked at Pohang Steelworks. She lived in Pohang until age sixteen, at which point she dropped out of high school after only a month. She then moved to Daegu, attended an academy for eight months, and decided to take the GED. At the age of 17, she enrolled in Daegu Arts University, where she studied photography. She later pursued a master's degree in photography at Chung-Ang University in Seoul, completing it at the age of 24. Her stage name was originally Zhuge Bong-ryeon, which she used for her photography exhibitions.

Her first attempt at acting was in a short film directed by a friend who transferred major from photography to film. Around 2003, Lee watched the musical Sing in the Rain and was impressed by Park Dong-ha's performance. Subsequently, she enrolled in the musical department of a social education center at a nearby university, attending night classes for about two years. During this period, her stage director and instructor, Kim Dong-yeon, asked her to assist him as a director for his play Fantasy Fairy Tale.

In 2005, Lee made her acting debut in the musical Five Drawings of Love. Initially an understudy, she took the stage when an actor was absent for a month. Since then, she has performed in a variety of plays and musicals.

In 2008, Lee was inspired by Lee Jung-eun's portrayal of a grandmother in the musical Laundry and successfully auditioned for the same role in the following season. She went on to perform in the musical for three years. Since her work in Laundry, Lee has performed in several notable productions, including Roberto Zucco directed by Oh Kyung-taek, Almost Main directed by Yi Sang-woo, Comrades of the Century Wind directed by Kim Soo-jin, and Beeul (Punishment) directed by Kim Dong-hyun. Lee expressed particular gratitude for her collaboration with director Kim Dong-hyun on Beeul (Punishment). She recalls that when she felt lost during rehearsals, Kim approached her and encouraged her by saying he saw a new side of her acting, beyond the comedic expressions she was known for. This encouragement has remained a source of strength for her.

Lee made her cinematic debut with a minor role in Choo Chang-min's film Late Blossom (2011). This was followed by other minor roles in Masquerade (2012) and Confession of Murder (2012).

Lee first met director Park Geun-hyung at the Namsan Drama Center while he was preparing Jeon Myeong-chul Biography. This initial encounter led to their collaboration. Subsequently, Lee participated when the Alleyway theater company decided to stage Ode to Youth for their 10th anniversary. In Ode to Youth, Lee played a coffee shop waitress who suffered from epilepsy. Following this, she officially joined the Alleyway theater company and appeared in July performance of Jeon Myeong-chul Biography. It was followed by lead role in youth drama Red Bus, written and directed by Park Geun-hyung.