Here we present genomic data for the domestic cucumber (Cucumis sativus var. sativus L.). The cucumber is a member of the Cucurbitaceae or cucurbit family, a family of great agricultural and horticultural importance that also includes species such as melons, gourds and squashes. A biologically interesting as well as an economically relevant species, it is used as a model system for plant sex determination and vascular biology studies. The domestic cucumber has seven pairs of chromosomes and a haploid genome of 367 Mb, a smaller genome for the Cucurbitaceae family. The genome was sequenced and assembled with N50 contig and scaffold sizes of 19.8 Kb and 1.14 Mb, respectively. Using the genetic map, 72.8% of the assembled sequences were anchored onto the 7 chromosomes. A total of 26,682 genes were predicted in the current cucumber genome.