  We present a search for a neutrino signal from dark matter self-annihilations
in the Milky Way using the IceCube Neutrino Observatory (IceCube). In 1005 days
of data we found no significant excess of neutrinos over the background of
neutrinos produced in atmospheric air showers from cosmic ray interactions. We
derive upper limits on the velocity averaged product of the dark matter
self-annihilation cross section and the relative velocity of the dark matter
particles $\langle\sigma_{\text{A}}v\rangle$. Upper limits are set for dark
matter particle candidate masses ranging from 10 GeV up to 1 TeV while
considering annihilation through multiple channels. This work sets the most
stringent limit on a neutrino signal from dark matter with mass between 10 GeV
and 100 GeV, with a limit of $1.18\cdot10^{-23}\text{cm}^3\text{s}^{-1}$ for
100 GeV dark matter particles self-annihilating via $\tau^+\tau^-$ to neutrinos
(assuming the Navarro-Frenk-White dark matter halo profile).
