Ludwig Wittgenstein, an influential Austrian philosopher, significantly shaped 20th-century analytic philosophy through his exploration of language, logic, and meaning. His works, particularly the 'Tractatus Logico-Philosophicus', introduced key concepts like 'logical atomism' and the limitations of language, while his later philosophy emphasized the contextual nature of meaning and the concept of 'language games'. Wittgenstein's ideas have had a lasting impact on contemporary philosophy, challenging traditional views and fostering a reconsideration of language's role in shaping human understanding.