Saint Michael's Institution (Malay: Institusi Saint Michael; abbreviated SMI) a school in Ipoh, Kinta District, Perak, Malaysia.

It is situated on Jalan SP Seenivasagam, formerly Clayton Road.

Within the same compound are two primary schools, St Michael's I and II.

St Michael's Institution is part of the La Sallian worldwide community of schools.

SMI's two alumni associations (the Old Michaelians' Association and the Klang Valley SMI Alumni Association) belong to the Malaysian Federation of Lasallian Associations (MFOLSA), the umbrella organisation for all Lasallian alumni associations in Malaysia.