There are provided inter alia pyrazolyl-substituted pyridone compounds, which exhibit biological activity, e.g., inhibitory action, against serine proteases, including thrombin and various kallikreins. There are additionally provided pharmaceutical compositions. There are additionally provided methods of treating and preventing certain diseases or disorders, which disease or disorder is amenable to treatment or prevention by the inhibition of serine proteases, including thrombin and various kallikreins.