Kanji What does the kanji 腎 mean? 腎 means kidney. On'yomi ジン. Quick factsOn'yomiジンStrokes13 腎On'yomi ジン13 strokeskidneyBuilt from月moon, month 4 strokes臣retainer 7 strokes又right hand 2 strokesStroke order · 13 strokesWatch it written12345678910111213Common words肝腎かんじんessential, crucial