Marina Andreyevna Aganina (Russian: Мари́на Андре́евна Ага́нина, IPA: [mɐˈrʲinɐ ɐnˈdrʲe(j)ɪvnɐ ɐˈɡanʲɪnə]; born 21 June 1985) is an Uzbekistani retired pair skater.

With Artem Knyazev, she is the 2004–05 Uzbekistani national champion and competed at the 2006 Winter Olympics.

[1] In the 2005–06 season, Knyazev began helping coach himself and Aganina.

In the summer of 2007, Aganina began a partnership with Dmitry Zobnin which lasted three seasons.

They attempted to qualify for the 2010 Winter Olympics at the 2009 Nebelhorn Trophy but were unsuccessful.