金鐘鉉（김종현，Kim Jong-hyun），藝名鐘鉉（종현，JongHyun），韓國歌手、創作歌手和音樂製作人。為SM娛樂旗下男子歌唱團體SHINee的成員之一，擔任隊中主唱。生於首爾，未出道前為中學樂隊貝斯手，15歲時成為SM娛樂旗下練習生，2008年後以男團SHINee主唱身份出道。出道初期努力學習歌曲創作，於2009年發表第一首由他作詞的〈Juliette〉，收錄於SHINee第二張迷你專輯《ROMEO》之中，由此開始鐘鉉便積極地發展他的音樂創作事業。2015年發行第一張迷你專輯《BASE》，正式solo出道，而此後發表的作品《Story Op.1》、《She Is》以及《Story Op.2》都受到歡迎，而且所收錄的歌曲大部份都是由本人所創作。2017年12月18日，金鐘鉉在首爾剛入住的酒店式公寓內燒炭自殺，經急救後不治，得年27歲。

Kim Jong-hyun (김종현; April 8, 1990 – December 18, 2017), known professionally as Jonghyun (종현), was a South Korean singer-songwriter, record producer, radio host and author under the SM Entertainment. He was a member of the South Korean boy group SHINee. He also participated in the SM Entertainment's project ballad group, S.M. THE BALLAD.

Jonghyun was also a solo artist, beginning in January 2015 with the release of his first EP album, Base. It peaked at number one on both the Billboard World Albums Chart and the Gaon Album Chart. On September 17 the same year, Jonghyun released a compilation album, Story Op.1. His debut studio album, She Is, was released on May 24, 2016, followed by his second compilation album, Story Op.2, on April 24, 2017. Jonghyun began his first solo concert tour, The Story by Jonghyun, on October 2, 2015. This was followed by three further concert tours in later years. He was regarded as one of the best vocalists in South Korea.

His final album, Poet | Artist, was released posthumously on January 23, 2018. It was announced, prior to the release, that all profits from the album would be given to Jonghyun's mother and be used to start a charity foundation. In September 2018, the Shiny Foundation (빛이나 재단) was established by Jonghyun's family to help struggling young artists.