Volcanic ocean islands are valuable natural laboratories for studying how landscapes evolve in tectonically active environments. Although these islands all form through volcanic activity, they display a wide variety of shapes and sizes influenced by factors such as varying age, climate, and characteristics of magma hotspots. Over time, erosion wears down islands while the land also sinks due to subsidence; together, these processes determine how long islands remain above sea level. In this study, we examine volcanic islands worldwide to see whether their morphology relates to the erosive and tectonic processes that shape them. We consider how island morphology changes with island age, slope, erosion rate, and subsidence rate. To explore this further, we use a numerical model to simulate island evolution under different erosion and subsidence rates. These results enhance our understanding of how surface and tectonic processes interact to shape island landscapes. Ultimately, this research aims to connect landform patterns with geological and environmental processes within Earth's dynamic systems.