Yu.Ya. Chaika was born in 1951 in Nikolayevsk-on-Amur, Khabarovsk Territory.
He started his working career in 1970 as an electrician at a shipbuilding factory in his native city. Having served in the army, he came back in 1972 to enter the Sverdlovsk Law Institute. In 1976, after graduation, Yu.Ya. Chaika was employed as a probationer in the prosecution service, later worked as an investigator, a Deputy Regional Public Prosecutor in the Irkutsk Region, a Taishet Transport Public Prosecutor of the East Siberia Transportation Prosecutors Office.
In 1992, he became Public Prosecutor of the Irkutsk Region.
In 1995, Yu.Chaika was appointed to the post of the First Deputy Prosecutor General of the Russian Federation.
From 1999 to 2006, he headed the Ministry of Justice of the Russian Federation.
On June 23, 2006, by the Resolution of the Federation Council of the Federal Assembly of the Russian Federation Yu.Chaika was appointed to the post of the Prosecutor General of the Russian Federation.
Since January 2020, Plenipotentiary Representative of the President of the Russian Federation in the North Caucasus Federal District.
He received state and departmental awards on numerous occasions for his contribution to promoting the rule of law and public order. He has the rank of Actual State Counselor of Justice.
He is married and has two children.