最大风速半径（英语：radius of maximum wind，简称RMW）指的是气旋中心到其最强烈风带之间的距离，是一个用于大气动力学和热带气旋预测的参数。热带气旋的最大风速半径内降雨量通常也最高。使用这个参数，可以对气旋的最大潜在强度和所产生风暴潮的规模做出估算。随着最大持续风速的提高，最大风速半径通常会减少。近年来，这个参数已经开始在龙卷风的描述中使用。此外，在对建筑物进行设计，防止因气压变化而出现损伤时，也可以调用最大风速半径来进行计算。

The radius of maximum wind (RMW) is the distance between the center of a cyclone and its band of strongest winds. It is a parameter in atmospheric dynamics and tropical cyclone forecasting. The highest rainfall rates occur near the RMW of tropical cyclones. The extent of a cyclone's storm surge and its maximum potential intensity can be determined using the RMW. As maximum sustained winds increase, the RMW decreases. Recently, RMW has been used in descriptions of tornadoes. When designing buildings to prevent against failure from atmospheric pressure change, RMW can be used in the calculations.