中繼資料（英語：metadata），又叫詮釋資料、中介資料、元資料、後設資料等，係描述其餘資料資訊嘅資料。有三種唔同類嘅中繼資料，分別係記敘性中繼資料、結構性中繼資料同管理性中繼資料。
Relay data (English: metadata), also known as interpretive data, intermediary data, metadata, metadata, metadata, etc., is the data that describes the rest of the data information. There are three different types of relay data, namely narrative relay data, structured relay data, and managerial relay data.