Jyotirmoy Dey (Bengali: জ্যোতির্ময় দে; 1955 – 11 June 2011), also known as Jyotendra Dey, Commander J, and J Dey, was an Indian journalist, crime and investigations editor for Mid-Day (a tabloid newspaper published in several cities in India) and an expert on the Mumbai underworld. He was shot to death by motorcycle-borne sharpshooters on 11 June 2011.