Rahimi defeated China’s Shao Qian 13-2 in her first match in the women’s -52kg k44 and then beat Brazilian Maria Eduarda Machado 6-4.
She emerged victorious over Georgian Ana Japaridze 6-0 in the semifinals.
Rahimi lost to Mongolia’s Ulambayar Surenjav 5-2 in the final match.
Bronze medal matches went to Japaridze and Turkey’s Meryem Betül Çavdar.
Iran has sent 65 athletes in 10 sports to Paris.