鄭號錫（정호석，Jung Ho-seok），韓國歌手、舞者，藝名 j-hope（제이홉），為男子團體防彈少年團的成員，在團內擔任副Rapper、主舞及舞蹈隊長，為第三位入選的成員。2013年6月13日，透過單曲專輯《2 COOL 4 SKOOL》出道。2014年6月4日，透過日語單曲《NO MORE DREAM -Japanese Ver.-》在日本出道。2018年3月2日，推出首張mixtape《Hope World》。2020年升格為韓國音樂著作權協會的正式會員。2022年7月15日，推出首張solo專輯《Jack In The Box》。

Jung Ho-seok (정호석; born February 18, 1994), known professionally as j-hope (제이홉), is a South Korean rapper, songwriter, record producer and dancer under BigHit Music. He is a member of the boy group BTS.

j-hope released his first solo mixtape, Hope World, in 2018. It was received positively by critics and peaked at number 38 on the US Billboard 200, the highest-charting album by a Korean solo artist at the time. He became the first member of BTS to enter the Billboard Hot 100 as a soloist in 2019, when his single "Chicken Noodle Soup", featuring singer Becky G, debuted at number 81. In 2022, j-hope released his debut studio album Jack in the Box. In 2023, he released his single "On the Street" with J. Cole. In 2024, he released a six-part docuseries titled Hope on the Street, accompanied by the special album Hope on the Street Vol. 1. In 2020, j-hope was promoted to full member of the Korea Music Copyright Association.

In 2018, he was awarded the fifth-class Hwagwan Order of Cultural Merit by the President of South Korea, along with the other members of BTS, for his contributions to Korean culture.