König's Theorem is a fundamental result in graph theory that relates to bipartite graphs. It states that in any bipartite graph, the size of the maximum matching (the largest set of edges that do not share a vertex) is equal to the size of the minimum vertex cover (the smallest set of vertices that touches all edges). This theorem is significant because it provides a way to analyze and solve problems involving matching and covering in bipartite graphs. It is often used in various applications, including network flow problems and resource allocation scenarios.