RIM-162改进型海麻雀导弹（Evolved SeaSparrow Missile, ESSM）是一种用于保护船只攻击导弹和飞机的RIM-7海麻雀导弹的发展形。 ESSM是设计来对付超音速反舰导弹。为了配合MK-41垂直发射器，MK-25四合一发射箱被开发出来，每个MK-25能容纳四枚ESSM；每个MK-41发射管可装入一个MK-25发射器。另外，ESSM还可以被MK-29Mod4&5、MK-48VLS和MK-56VLS发射。

许多国家正在使用或计划使用ESSM。已装备ESSM国家有美国、澳大利亚、加拿大、德国、土耳其、希腊、日本、丹麦、荷兰、挪威和西班牙等。

The RIM-162 Evolved SeaSparrow Missile (ESSM) is a development of the RIM-7 Sea Sparrow missile used to protect ships from attacking missiles and aircraft. ESSM is designed to counter supersonic maneuvering anti-ship missiles. ESSM also has the ability to be "quad-packed" in the Mk 41 VLS system, allowing up to four ESSMs to be carried in a single cell.