Constantine I (Georgian: კონსტანტინე I, Konstantine I; died 1327), from the Bagrationi dynasty, was king of Western Georgia from 1293 to 1327.

A son of the Georgian king David VI Narin and his wife, Tamar Amanelisdze,[1] or a Palaeologian princess.

Unlike his eastern Georgian counterparts, Constantine remained independent from the Ilkhanid hegemony, but he faced serious internal unrest as his younger brother Michael opposed his accession and seized control of the regions of Racha, Lechkhumi, and Argveti.

Giorgi I Dadiani, Duke of Mingrelia, subjugated much of the duchy of Tskhumi and expanded his possessions up to Anakopia.

The Sharvashidze entrenched in Abkhazia, the Gurieli in Guria, and Vardanidze in Svaneti, showing little subservience to the royal authority.