In the present study, an inventory of trees has been prepared in Environmental Park, Raika in Jammu region of J&K Union Territory, India. A Total of 75 tree species belonging to 53 genera and 33 families have been recorded from the study area. Out of which 51 tree species were native while 24 tree species were introduced. Among the different genera present in the study area, Ficus was represented by 8 species, Acacia by 5 species, while Bambusa, Cassia, Eucalyptus & Terminalia have been represented by 3 species each Bauhinia, Salix & Stercularia have been represented by 2 species each and rests of genera were represented by 1 species each. Moraceae has been observed to be the dominant family with 10 species followed by Fabaceae with 9 species; Meliaceae, Caesalpiniaceae, Myrtaceae & Euphorbiaceae (4 species each); Poaceae, Bignoniaceae, Salicaceae & Combretaceae (3 species each); Mimosaceae, Boraginaceae, Leguminosae, Ulmaceae & Sterculiaceae (2 species each) & remaining families have been represented by 1 species each.