Prince Keqin of the Second Rank (Manchu: ᡩᠣᡵᠣᡳ ᠪᠠᡥᠠᠮᡝ ᡴᡳᠴᡝᠮᠪᡳ ᡤᡳᠶᡡᠨ ᠸᠠᠩ; doroi bahame kicembi giyūn wang), or simply Prince Keqin, was the title of a princely peerage used in China during the Manchu-led Qing dynasty (1644–1912).
It was also one of the 12 "iron-cap" princely peerages in the Qing dynasty, which meant that the title could be passed down without being downgraded.
The first bearer of the title was Yoto (1599–1639), a grandson of Nurhaci, the founder of the Qing dynasty.
After his death, he was posthumously honoured with the title "Prince Keqin of the Second Rank".
During the reign of the Qianlong Emperor, the peerage was restored to its former name, "Prince Keqin of the Second Rank", and awarded "iron-cap" status.