**Radiative Corrections in Universal Extra Dimensions**

Universal extra dimensions is an interesting extension of the Standard Model

that is naturally protected from electroweak precision constraints and provides

a natural dark matter candidate. Its phenomenology at the LHC is strongly

affected by radiative corrections. On one hand, QCD corrections are important

for understanding the production of heavy gluons and quarks, which are the

particles with the largest production rates at the LHC. On the other hand,

radiative corrections crucially modify the mass spectrum and interactions of the

heavy resonances. This talk will describe recent progress on both of these

fronts.