Mutsumi Ishimura (石村 睦) is a sound designer affiliated with Tamsoft. A secondary composer for Toshiden 4 (aka Toshinden Subaru), she later worked with fellow Toshiden composer Akihi Motoyama on the Onechanbara and Senran Kagura series and a few entries in D3Publisher Inc.'s Simple 2000 series that, much like Toshinden 4, only saw international release in Europe.
- Choro-Q 3 (1998)
- Guardian's Crusade (1998) -- Sounds (Tamsoft)
- Battle Arena Toshinden 4 (1999) -- Music Product (Tamsoft Development Staff), Sound Effect Product (Tamsoft Development Staff)
- Ore ga Kantoku da!: Gekitou Pennant Race (2000) -- Composition/Arrangement / Production (Sound)