It is a French surname that is topographic for someone who lived by a grove or thicket. The name was rendered in medieval documents in the Old French TOUCHE.
The "Touche" family name originated in the
Rhine area of
France. It has many spellings which include LATOUCHE, LETOUCHE, TOUCHET and TOUCHON. (Tashaw Tasher Tioucher Toucha Toshaw Touchar Towchard Touchart Toucher Tousher Toushaw Towcher Towshaw Tuchaw Tusar Tushard Tushaw Tushor Twoshaw - in England)