多媒体记忆卡（英语：Multimedia Card），又译MMC卡，是一种快闪记忆卡标准。在1997年由西门子及SanDisk共同开发，技术基于东芝的NAND快闪记忆技术，因此较早期基于Intel NOR快闪记忆技术的记忆卡（例如CF卡）更细小。MMC卡大小与一张邮票差不多，约24mm x 32mm x 1.5mm。

MMC卡原本使用1bit串联接口，但较新的标准则容许同时发送4 bit或8 bits的数据。近年MMC卡技术已差不多完全被SD卡所代替；但由于MMC卡仍可被兼容SD卡的设备所读取，因此仍有其作用。

The MultiMediaCard (MMC) is a memory card standard used for solid-state storage. Unveiled in 1997 by SanDisk and Siemens AG, it is based on a surface contact low pin-count serial interface using a single memory stack substrate assembly, and is therefore much smaller than earlier systems based on high pin-count parallel interfaces using traditional surface mount assembly such as CompactFlash. Both products were initially introduced using SanDisk NOR-based Flash technology. MMC is about the size of a postage stamp: 24 mm × 32 mm × 1.4 mm. MMC originally used a 1-bit serial interface, but newer versions of the specification allow transfers of 4 or 8 bits at a time. MMC can be used in many devices that can use Secure Digital (SD) cards.