Inland wetlands are among the ecosystems disappearing with the highest rate, although they can offer numerous benefits to humans and their welfare. We have learned that wetlands are not just the treasures of biodiversity and a refuge for many threatened or vulnerable species but are also one of the best tools to mitigate the consequences of climate changes. The significance of this should not be understated if we want to increase the resilience of our cities, communities and civilization to extreme weather events. This Special Issue contains 17 papers presenting a variety of wetland types, species and communities thriving within, discussing their structure, functioning and suitable management practices to preserve them.