The atlas represents a collection of spectra in the wavelength range 2.00 to 2.45 micrometers having a resolution of approximately 0.02 micrometers. The sample of 73 stars includes a supergiant, giants, dwarfs, and subdwarfs with a chemical abundance range of about -2 to +0.5 dex. Introduction: An Atlas of Stellar Spectra between 2.00 and 2.45 micrometers contains digital spectra for a sample of 73 stars of various temperature classes of F and later, most luminosity classifications, and a range of abundances. A majority of the spectra were obtained with the UKIRT, while some observations were collected with the Mount Hopkins MMT. The UKIRT provided a 59-point spectrum from 2.004 to 2.451 micrometers and the MMT gave a 30-point spectrum from 2.001 to 2.431 micrometers. This documentation should be used only to supplement the information contained in the source reference, which should be consulted for details regarding the impetus for the work, the selection of standard stars, the observational procedures, and the technique of data reduction. The source reference also contains a full listing of the observed stars and a table of flux standards used. Graphical presentations of all spectra are also given in the body of the paper, while the digital spectra are listed on a microfiche card accompanying the journal issue. (Note: The labels on the two microfiche cards in the issue are reversed.) In any case, the published paper should be consulted by all users of the machine-readable data.