The Polish international went into the final game of the season at Hertha Berlin's Olympiastadion level at the top of the scorers' charts with FC Bayern München striker Mario Mandzukic, but netted twice in a rampant 4-0 win to scoop the prize for the first time, finishing two goals clear of his soon-to-be colleague and three ahead of 1. FC Nürnberg's Josip Drmic.
"I have to thank all my team-mates because I wouldn't have done it without them," said Lewandowski after the final whistle in Berlin. "I wasn't aware of what was going on in the other games and only found out at the final whistle that I'd won the Torjägerkanone. It makes me unbelievably happy - it was always my aim to finish the season as top scorer."
The freshly crowned Torschützenkönig will play his last ever competitive game in a Dortmund shirt against future employers Bayern in the DFB Cup final back in Berlin next Saturday.
Check out the brace that earned Lewandowski the Torjägerkanone, courtesy of the official Bundesliga YouTube channel: