Born on 22 May 1968 in Novocherkassk, Rostov Region.
In 1990, he graduated with honours from the Novosibirsk 60th Anniversary of October Higher General Military and Political School, in 2003 from the Academy of the Federal Security Service of the Russian Federation, in 2011 from the Russian Presidential Academy of National Economy and Public Administration.
Since 1990, he served in the 103th Vitebsk airborne division, since 1993 – in the Federal Security Service of the Russian Federation (commander of the regional division of the Alpha group). Several times he was sent to the emergency zones, took part in counter-terrorist operations in the Chechen Republic. He was wounded three times.
In 2003, he was elected deputy of the 4th State Duma of the Federal Assembly of the Russian Federation from a single mandate district. He was a member of the following committees and commissions: International Affairs Committee, Anti-Corruption Council, Mandate and Deputy Ethics Commission; headed the subcommittee on legislative support for international cooperation of the Russian Federation in the fight against international terrorism and transnational organised crime. In the 5th State Duma of the Federal Assembly of the Russian Federation, he worked in the Defence Committee, co-chaired the Commission for the Federal Budget Expenditures, aimed at ensuring the defence and state security of the Russian Federation.
In the 6th State Duma of the Federal Assembly, he was deputy chairman of the Defence Committee.
In 2009, he was included in the top 100 executive candidates pool of the President of the Russian Federation.
In April 2015, the Government of the Russian Federation appointed Igor Barinov as the head of the Federal Agency for Nationality Affairs.
Awarded the fourth-class medal for the Order of Merit to the Fatherland, Order of Courage, the Order of Military Merit, the Suvorov Medal, the 1st, 2nd and 3rd class medals ‘For Distinguished Military Service’, the medal ‘For Strengthening Comradeship-in-Arms’.
Married with a son and three daughters.