年报是一间公司或公共机构之董事局每年度向其股东或持份者发布的报告书。年报中通常包括损益账及资产负债表，同时亦包括董事会报告及核数师报告。如该公司为上市公司，该年报内容必须按照其上市之交易所制订之规则编写。一般情况下，大型公司的年报往往印刷精美、色彩丰富。每年的最佳上市公司年报选举，一般会以多方面的标准评审，现时较为受重视的包括整体设计、披露程度、或简易程度等等。

现时各股东及投资者对年报所披露之公司管治、透明度、业绩及派息率等的关注程度不断上升。一般情况下，年报内的内容有助股东及潜在投资者了解公司的财务状况及董事会报告业务现况及未来之发展方向。

An annual report is a comprehensive report on a company's activities throughout the preceding year. Annual reports are intended to give shareholders and other interested people information about the company's activities and financial performance. They may be considered as grey literature. Most jurisdictions require companies to prepare and disclose annual reports, and many require the annual report to be filed at the company's registry. Companies listed on a stock exchange are also required to report at more frequent intervals (depending upon the rules of the stock exchange involved).