B Physics at the LHC

The LHC is scheduled to start its first physics data taking period later in 2009. Primarily LHCb but also ATLAS and CMS will start a rich B physics programme with the potential of revealing New Physics in the heavy flavour sector. This contribution will cover the prospects for B physics at the LHC with particular emphasis to early measurements. This includes CP violation measurements in $B^0_d$ and $B^0_s$ decays, searches for rare decays such as $B^0_s$ $\rightarrow$ $\mu\mu$, as well as semileptonic and radiative channels.