23 January 1944 Helsinki) is a Finnish Foreign Affairs Counselor who has worked as Ambassador to Sofia in 1990-1992, Tallinn 1996-2001 and Dublin in 2001-2005.
Since 2007, He has been Deputy Director of the Legal Department of the Ministry for Foreign Affairs.
Oinonen started working in 1969 at the Ministry of Foreign Affairs, where he has worked in addition to the Legal Department, in the Administrative Department, the Development Cooperation Department and the Department of Commerce.
As an inspector of foreign affairs, he worked for 1992-1996.
Between 1982 and 1985, he was a cabinet justice at the Ministry of Trade and Industry.