This chapter discusses the law on creditor claims in Germany. German insolvency law distinguishes between several types of creditors in insolvency proceedings and treats them differently with regard to priority of claims, enforcement, modes of realization, and costs. The doctrinal approach of the German Insolvency Code is not so much a categorization of claims, but rather it takes a view on the creditors. German insolvency law draws a rough distinction between four creditor groups: secured creditors; general insolvency creditors; subordinated creditors; and administration creditors. The remainder of the chapter deals with insolvency claims, administration claims, and non-enforceable claims in turn. Each section covers: the definition and scope of the claim; rules for submission, verification, and satisfaction or admission of claims; ranking of claims; and voting and other participation rights in insolvency proceedings.