Im Sa-hong (Korean: 임사홍; Hanja: 任士洪; 1445–1506) was a Korean scholar official and member of the royal family of Joseon Dynasty. He was a close minister of King Yeonsangun of Joseon. His courtesy name was Yiui (이의).

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• Father
  • Im Won-jun (임원준; 任元濬; 1423 – 1500 or 1506)
• Mother
  • Lady Nam of the Uiryeong Nam clan (정경부인 의령 남씨)
• Sibling(s)
  • Younger brother - Im Sa-yeong (임사영)
• Wife and issue
  • Lady Yi of the Jeonju Yi clan (전주 이씨); daughter of Yi Gab, Prince Boseong (보성군 갑; 寶城君; 1416–1499)^{[lower-alpha 1]}
    • Son - Im Gwang-hae (임광재; 任光載; ?–1495)
      • Daughter-in-law - Princess Hyeonsuk (현숙공주; 1464–1502)^{[lower-alpha 2]}
    • Son - Im Hui-jae (임희재; 任熙載; 1472–1504)
      • Daughter-in-law - Gu Sun-bok (구순복; 具順福), Lady Gu of the Neungseong Gu clan (능성 구씨; 綾城 具氏)^{[lower-alpha 3]}
        • Granddaughter - Lady Im of the Pungcheon Im clan (풍천 임씨; 豊川 任氏)
          • Grandson-in-law - Shin Hong-jo (신홍조; 愼弘祚; 1490–?)^{[lower-alpha 4]}
            • Great-Grandson - Shin Sa-heon (신사헌; 愼思獻; 1520–?)
    • Son - Im Mun-jae (임문재; 任文載)
    • Son - Im Song-jae (임숭재; 任崇載; ?–1505)
      • Daughter-in-law - Princess Hwisuk (휘숙옹주)^{[lower-alpha 5]}
        • Granddaughter - Lady Im of the Pungcheon Im clan (풍천 임씨; 豊川 任氏)
        • Granddaughter - Lady Im of the Pungcheon Im clan (풍천 임씨; 豊川 任氏)
        • Granddaughter - Lady Im of the Pungcheon Im clan (풍천 임씨; 豊川 任氏)
    • Daughter - Lady Im of the Pungcheon Im clan (풍천 임씨; 豊川 任氏)
    • Daughter - Lady Im of the Pungcheon Im clan (풍천 임씨; 豊川 任氏)
      • Son-in-law - No Jung (노종; 盧種)^{[lower-alpha 6]}

• Yeonsangun of Joseon
• Nam Gon