On 13 April 2014, Kießling scored a header after forty seconds to put his side 1–0 up over Hertha BSC; the game would finish 2–1 in Leverkusen's favor, moving the club into fourth place. On 10 May, Leverkusen defeated Werder Bremen 2–1, securing fourth place for the club and booking a spot in the play-off round of the UEFA Champions League for the following season. Kießling finished the season with 19 goals in 43 matches. Despite finishing the Bundesliga season as the leading goalscorer for a German forward, he was left out of the Germany squad at the World Cup in Brazil.