金融学里的证券借贷（英文：Securities lending、Stock lending）指的是一方把证券借给另一方。证券借出后，证券所有权被转让给借入证券的一方，借券的一方将得益于持有证券，比如借券人将获得息票利息、股息或其他权利。在多数情况下，这些息票利息或股息必须还给借出证券的一方。

证券借贷的条款遵从具有法律效力的证券借贷协议（Securities Lending Agreement）。借券人必须向债权人提供担保或抵押品，可以是现金，国债或信用证，抵押品的价值不低于所借证券的市场价值。

证券借贷的费用由双方协商决定，以所借证券价值的年百分比或年基点报价。如双方约定的担保形式为现金，那么借出证券的一方需将现金利息付给借入证券的一方，即从证券借贷的费用中按照约定利率回扣利息。

In finance, securities lending or stock lending refers to the lending of securities by one party to another. The terms of the loan will be governed by a "Securities Lending Agreement", which requires that the borrower provides the lender with collateral, in the form of cash or non-cash securities, of value equal to or greater than the loaned securities plus agree upon margin. Non-cash refers to the subset of collateral that is not pure cash, including equities, government bonds, convertible bonds, corporate bonds, and other products. The agreement is a contract enforceable under relevant law, which is often specified in the agreement.