Stefan Kiessling is a German footballer who currently plays as a striker for Bayer 04 Leverkusen. He has also represented the German national team six times.

His performances stirred the interest of Bayer Leverkusen and he was signed by the Bundesliga club in 2006. Since joining he has impressed with his performances, scoring 32 goals in 80 league appearances. Currently, he is one of the top scorers in the Bundesliga, having scored 15 goals in the 2008–09 campaign, five goals behind regular strike partner Patrick Helmes. He continued his impressive form in the 2009–10 season, scoring 21 goals in 33 games and finishing the season as the second highest goal scorer in the Bundesliga.

On 15 December 2012, Kießling scored a brace to keep up Bayer's pursuit of Bayern Munich heading into the winter break; the goals also meant that at the half season mark he was the top scorer in the Bundesliga.