免费邮递，或称商业回邮，是一种由邮政机构提供的邮政服务。与一般邮件不同，这是一种由收件者支付邮资的邮件，寄件者无需支付邮资。免费邮递与预印地址及邮票信封、礼貌回邮及邮戳回邮不同的是，免费邮递的收件者只需支付他们收到的邮件的邮资，而后三者则按照它们的发行量来收费（即无论有否回收该邮件均要付费）。

免费邮递经常被公司用在宣传上，公司会对潜在顾客寄出大量邮件，这些邮件通常包括信封或明信片，为了吸引他们回信，公司会向邮政局申请免费邮递，使潜在顾客无需支付邮资就可回信。另外，杂志社亦会在杂志上附上长期订阅申请表，有意订阅的读者可透过免费邮递将申请表寄回杂志社。有部分商店亦会使用免费邮递，顾客回退某件商品时可以免费寄回来。

Freepost is a postal service provided by various postal administrations, whereby a person sends mail without affixing postage, and the recipient pays the postage when collecting the mail. Freepost differs from self-addressed stamped envelopes, courtesy reply mail, and metered reply mail in that the recipient of the freepost pays only for those items that are actually received, rather than for all that are distributed.