原物归位（英语：Anastylosis，源自古希腊语αναστήλωσις，意思是「重建」）是一个考古学术语，指修复古建筑时，经过谨慎研究和测量之后尽可能采用原有的材料。此外，该词也会应用到较小型古物如陶器等的修复上，指使用当时相同的技术来修复这些器物。

Anastylosis (from the Ancient Greek: αναστήλωσις, -εως; ανα, ana = "again", and στηλόω = "to erect (a stela or building)") is an archaeological term for a reconstruction technique whereby a ruined building or monument is restored using the original architectural elements to the greatest degree possible. It is also sometimes used to refer to a similar technique for restoring broken pottery and other small objects.