锻焊（英语：Forge welding），又称锻接、铸焊、锻造焊接，一种固态焊接制程，先加热两片金属，到达白炽状态，之后以槌子反复敲打的方式，使它们熔合，焊接成一块。这是一种最简单的治金技术，人类从很早之前就开始应用这个技术。锻焊的应用很广，它能够使两种不同但融点相近的金属融合在一起。在工业革命之后，以天然气及电气进行铸造的技术已经取代了锻焊。

将不同金属材料锻焊在一起，可以在较低温的熔合状况下，让金属之间形成共晶（eutectic）。这个特性，使得以锻焊制造的器具，经常会比以现代工业技术制造出来的金属更为强固。

Forge welding is a solid-state welding process that joins two pieces of metal by heating them to a high temperature and then hammering them together. The process is one of the simplest methods of joining metals and has been used since ancient times. Forge welding is versatile, being able to join a host of similar and dissimilar metals. With the invention of electrical and gas welding methods during the Industrial Revolution, forge welding has been largely replaced.