Dejan Mihajlov is Secretary-General of the Government of Serbia

He was born in 1972 in Pancevo. He graduated from the Faculty of Law. Between 2000 and 2004, Mihajlov was a president of the Democratic Party of Serbia's caucus in the Serbian parliament.

He is a deputy in the Serbia parliament.

As president of Dragan Marsicanins campaign for president of Serbia in the Serbian presidential elections, 2004, he states that his party knows who are the real killers of Zoran Djindjic. The day after that statement he said that it is police job to find criminals not his, and that he will not say who are the killers. This was probably the reason for bad result of Dragan Marsicanin in this elections.