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Yoon San Ha (윤산하; or simply Sanha) is a South Korean singer-songwriter and actor under Fantagio. He is the maknae of the boy group ASTRO and former member of its sub-unit Moonbin & Sanha.

He will make his solo debut in August 2024 with his first mini album Dusk.


2016: Debut with ASTRO[]

He made his debut as a member of ASTRO on February 23, 2016, with their debut mini album Spring Up.

2020–2022: Show Champion and debut with Moonbin & Sanha[]

On March 1, 2020, Sanha, alongside fellow member Moon Bin and VERIVERY's Kangmin, were announced to be the new MCs for the music show Show Champion with their first episode airing on March 4.[1]

On September 14, he debuted as a member of ASTRO's first sub-unit, Moonbin & Sanha, with the mini album In-Out.

On October 25, 2022, it was announced that the MC trio will host their last episode as MCs on Show Champion, which was aired on October 26.[2]

2024: Solo debut with Dusk[]

On July 5, 2024, Fantagio confirmed that Yoon San Ha is currently preparing for his debut solo album, aiming for an early August release.[3] On July 16, Fantagio announced Yoon San Ha's debut mini album Dusk.[4] which was later revealed to be released on August 6.[5]


Mini albums[]



  • "Love Formula 11M OST" ("One More Chance" with Chan Mi) (2019)
  • "Kkindae OST" ("Break") (2020)


Television films[]

  • Suunjapbang (KBS, 2023)


  • To Be Continued (Naver TV Cast, 2015)
  • My Romantic Some Recipe (Naver TV Cast, 2016) - cameo (Ep. 6)
  • Love Formula 11M (Naver TV Cast, 2019)
  • Crazy Love (KBS2, 2022)

Music shows[]

Writing credits[]

Artist Song Album Type
ASTRO "You & Me (Thanks AROHA)" "Winter Dream" Writing
ASTRO "By Your Side" Rise Up Writing
"Merry-Go-Round (Christmas Edition)"
ASTRO "Merry-Go-Round" All Light Writing
"One & Only"
ASTRO "My Zone" Switch On Composing
Sanha "Wish" Incense Writing


  • He has training in martial arts: he is trained in Hapkido (where he is a 2nd dan black belt), Judo (where he is 1st dan black belt) and Muay Thai.[6]
  • He is friends with AB6IX's Daehwi.[7]
  • He is currently the second tallest maknae in the entire K-pop industry (behind only PENTAGON's Wooseok).[8]
  • Sanha was almost cut from ASTRO's pre-debut lineup but he was added after having a growth spurt.
  • His favorite color is pink.[9]


Main article: Yoon San Ha/Gallery


Official links[]