Standards and Metrology Institute for Islamic Countries (SMIIC; Arabic: معهد المواصفات والمقاييس للدول الإسلامية; French: Institut de normalisation et de métrologie pour les pays islamiques; Turkish: İslam Ülkeleri Standardlar ve Metroloji Enstitüsü) is an intergovernmental and one of the 17 affiliated organizations of the Organisation of Islamic Cooperation.

SMIIC also conduct research projects on metrology, laboratory testing, in addition to providing cost-sharing mechanism and standardization across the associated countries.

To train a member state in concerned field, SMIIC provide technical assistance and data for the establishment of standardization and metrological-oriented departments.

Following that, a new organisation, Standards and Metrology Institute for Islamic Countries (SMIIC) statute was submitted for approval in 1998 in the 14th COMCEC session hosted in Istanbul, Turkey.

The agency statute came into existence after ratified by the 10 member states in May 2010 and hence the OIC Council of Foreign Ministers formally signed it in August 2010.