The Gelgoog Marine is a mobile suit introduced in Mobile Suit Gundam 0083: Stardust Memory.

A variation of the MS-14 Gelgoog, the MS-14F Gelgoog Marine was developed from the MS-14B Gelgoog High Mobility Type. Being designed for the Zeon Marine Corps, its power-to-weight ratio, mobility, and maneuverability were all greatly improved, rivalling the later MS-14Jg Gelgoog Jäger. Though the Gelgoog Jäger's performance was still superior, the Gelgoog Marine's production cost was lower, and was thus produced in greater number. In fact, many of the characteristics of the Gelgoog Marine and its commander variant would later be incorporated into the Gelgoog Jäger's design.

Compared to the MS-14A Gelgoog and the MS-14S Gelgoog Commander Type, the Gelgoog Marine was almost entirely specialized for space combat, adopting a unique backpack, with two large propellant tanks attached for extended operation time and cruise range. Instead of arm-mounted auxiliary propulsion units (which were useless in space), it was equipped with a pair of 110mm machine cannons. Although capable of using beam weapons, its main weapon was the MMP-80 machine gun, presumably due to the higher reliability of physical projectile weapons. Its other weapons include a pair of beam sabers and a spike shield that doubles as a melee weapon.

Late in the One Year War, the units used by MAU Cima were given a unique camouflage pattern composed of many fine dots, which makes gauging their shape on a monitor difficult. The paint itself also confuses many different types of sensors.