Simmental may refer to:

• Simmental, an alpine valley in the Bernese Oberland of Switzerland;
• Simmental cattle, a versatile breed of cattle originating in the valley of the Simme River, in the Bernese Oberland of western Switzerland;
• French Simmental, a French cattle breed, closely related to the Simmental cattle;
• Simmental Fleckvieh, another name of the Fleckvieh cattle, closely related to the Simmental cattle.
• Simmenthal, a brand of canned meats.
• The European Court of Justice ruling in Amministrazione delle Finanze dello Stato v Simmenthal SpA, March 1978, regarding the canned meat company.