S. Shimizu was a Human Starfleet officer in the 22nd century.
In the 2150s, she was listed as a Vehicle Development officer on the dedication plaque of the NX-class starships. (ENT: "Broken Bow", dedication plaque; ENT: "Affliction", dedication plaque)
In January 2155, she was listed as a Flight Activities officer on directory placards at Starfleet Command's Fleet Operations Center, Sol Sector. Her office was located in room #1174. (ENT: "Demons", directories)
This character was only mentioned in writing.
She was named after production accountant Suzi Shimizu.