LG 트윈스
On December 23, 2014, Hannahan signed a one-year deal worth $1 million with the LG Twins of the Korea Baseball Organization. On July 16, 2015, he was released from the LG Twins due to injuries and Luis Jiménez was signed to replace him. On July 18, 2015, Hannahan held a press conference to announce his retirement from professional baseball.