  An overview of the methods used to estimate the mass of the Galaxy and the
results obtained by various authors recently according to modern data is given.
In particular, the estimates obtained based on the analysis of the galactic
rotation curve, on the kinematics of the Galactic dwarf satellites and globular
clusters, on the streams of such dwarf galaxies, on escape speed, as well as on
halo stars are considered. Estimates of the Galaxy mass in the form $M (<r)$,
$M_{\rm 200}$ and $M_{\rm vir}$ are considered. According to 20 individual
estimates, the average value was found $\overline M_{\rm 200}=0.88\times
10^{12}~M_\odot$ with a dispersion of $0.24\times 10^{12}~M_\odot$ and a
weighted average error of $0.06\times 10^{12}~M_\odot$. According to 25
individual estimates, $\overline M_{\rm vir}=1.02\times10^{12}~M_\odot$ was
obtained with a dispersion of $0.41\times 10^{12}~M_\odot$ and a weighted
average error of $0.09\times10^{12}~M_\odot$.
