On 8 February Milan Aleksić scored two goals for Partizan in the fifth round of the Euroleague Group in which his team won without much problem 9–5 against TEVA-Vasas-UNIQA.

On 26 February Aleksić scored his last goal in the final round of the Euroleague Group, in which his team lost by 9–8 to Szeged Beton VE and dropped out of the competition.

Aleksić scored his first goal at the European Championship on 17 January 2012 against Germany in Serbia's second game which the Serbs won by 13–12.

On 19 January 2012, in their third game of the tournament, Aleksić scored his second goal in a difficult 15–12 victory against the defending European champions, Croatia.

], Aleksić played his 100th official match for his national team in the last round of group A scoring a goal, in which Serbia lost to Montenegro with 11–7.