Leucaena leucocephala (Lam.) de Wit 1961 (Caesalpinioideae; Fabaceae), invasive species in Korea, is shrub or small tree and has various ecological and economic usefulness including soil improvement, firewood, timber, animal food, and medicine. To provide genomic information, we sequenced the complete chloroplast (cp) genome of L. leucocephala using Illumina HiSeq sequencing and its phylogenomic relationship in the mimosoid clade. The length of cp genome of L. leucocephala was 167,423 bp with a pair of inverted repeats of 26,058 bp, separated by large and small single copy regions of 95,915 bp and 19,392 bp, respectively. Genome annotation predicted 133genes, including 88 protein-coding, 37 tRNA, and 8 rRNA genes. The phylogenomic analyses showed that Leucaena was closely related to Dichrostachys in the core mimosoid clade. The genomic information of L. leucocephala will be definitely fundamental to establish the management strategy for this invasive species in Korea.