Dendrobium wattii is a rare and ornamental orchid that is placed in Sect. Formosae of Dendrobium. The complete chloroplast (cp) genome sequence and the genome features of D. wattii were reported for new data on the phylogeny of Dendrobium. The complete cp genome sequence of D. wattii is 159,366 bp in length, including a large single-copy region (LSC, 87,192 bp), a small single-copy region (SSC, 18,422 bp), and two inverted repeat sequences (IRs, 26,876 bp, each). The total content of GC is 37.2%. The cp genome contains 133 genes, consisting of 131 unique genes (79 protein-coding genes, 30 tRNAs, and 4 rRNAs). The phylogenetic analysis suggested that D. wattii be closely related to other species of Dendrobium.