Abstract: Experiments at the Large Hadron Collider (LHC) will begin in the second half of this year. This machine, along with the proposed International Linear Collider (ILC), will directly probe physics at the TeV energy scale. The discoveries and measurements made by these experiments can have interesting implications for cosmology. I will discuss two examples of this connection. First, if dark matter is composed of weakly interacting massive particles, these particles may be directly produced and studied at the LHC and the ILC. Second, precise measurements of the Higgs boson properties may allow us to understand the dynamics of the electroweak phase transition in the early universe, with important implications for baryogenesis. In both cases, I will stress the aspects of the connection that do not depend on the (presently unknown) details of the fundamental theory at the TeV scale.