Martian meteorites are our only samples from Mars, thus far. Currently, there are a total of 252 individual samples originating from ≥11 ejection sites with crystallization ages varying from 4.5 to 0.15 Ga. Analyses, through techniques that are also used on terrestrial rocks, allow fundamental insights into the bulk composition, differentiation and evolution, mantle heterogeneity, and role of secondary processes, such as aqueous alteration and shock, on Mars. Martian meteorites display a wide range in mineralogy and chemistry, but are predominantly basaltic in composition. Over the past six years, the number of martian meteorites recovered has almost doubled allowing for studies to evaluate these meteorites as suites of martian igneous rocks. However, the martian meteorites represent a biased sampling of the martian surface with unknown ejection locations. Thus, the geology of Mars cannot be unraveled solely by analyzing meteorites. Rocks measured by rovers at the surface are of distinct composition to the meteorites, highlighting the importance of Mars missions, especially sample return. The Mars 2020 rover will collect and cache — for eventual return to Earth — over 30 diverse surface samples from Jezero crater. These returned samples will allow for Earth-based state-of-the-art analyses on diverse martian rocks with known field context. The complementary study of returned samples and meteorites will help constrain the evolution of the martian interior and surface. Here, we review recent finds and advances in the study of martian meteorites and provide a wish list of returned samples that would complement and enhance their study.