This document provides a curated list of data standards relevant to the research field Matter, compiled by the Helmholtz Metadata Collaboration (HMC) Hub Matter. It includes standards used in domains such as materials science, crystallography, astronomy, and electron microscopy, as well as generic metadata models and formats that support interoperability and FAIR data practices. The list is based on results from the HMC Community Survey, mappings from relevant repositories, and expert input, and is intended as a reference to help researchers identify and apply suitable standards in their work.