YODA -- Yet more Objects for Data Analysis -- is a lightweight C++ and Python package for weighted histogramming and reference data manipulation. It is particularly associated with the Rivet MC event analysis framework for High-Energy Physics, but has been written with general-purpose applications in mind. Version 2.0.0 and later are written for histogramming of arbitrary object types, in arbitrary dimensionalities, with statistically consistent fill volumes in mixes of continuous and discrete spaces.