| Kʼan Ahk II | |
| Predecessor: | Piedras Negras Ruler A |
| Father: | unknown |
| Mother: | unknown |
| Religion: | Maya religion |
Kʼan Ahk II,[1] also known as Ruler B was the second ruler of that Mayan city in Guatemala. He was a successor of Ruler A. He reigned c. 478.[2]
Nothing is known of this king except that one of his lieutenants, a yajawte ("lord of the tree"), was captured by Yaxchilan ruler Bird Jaguar II, probably in AD 478, as recorded at Yaxchilan.
His successor was Turtle Tooth.