  We present a multi-wavelength catalog in the Subaru-XMM Deep Field (SXDF) as
part of the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH). We
include the newly acquired optical data from the Hyper-Suprime Cam Subaru
Strategic Program, accompanied by IRAC coverage from the SPLASH survey. All
available optical and near-infrared data is homogenized and resampled on a
common astrometric reference frame. Source detection is done using a
multi-wavelength detection image including the $u$-band to recover the bluest
objects. We measure multi-wavelength photometry and compute photometric
redshifts as well as stellar masses for $\sim$1.17 million objects over
$\sim$4.2 deg$^2$ with $\sim$800,000 objects in the 2.4 deg$^2$ HSC-UltraDeep
coverage. Using the available spectroscopic redshifts from various surveys over
the range of $0<z<6$, we verify the performance of the photometric redshifts
and we find a normalized median absolute deviation of 0.023 and outlier
fraction of 3.2%. The SPLASH-SXDF catalog is a valuable, publicly available
resource that is perfectly suited for studying galaxies in the early universe
and tracing their evolution through cosmic time. The catalog is available for
download from https://z.umn.edu/SXDF .
