Ken Noguchi (born 1973) is a Japanese alpinist and environmental activist. While studying at Asia University, he climbed Mount Everest and went on to complete the Seven Summits, the highest peaks on each continent. He has since led environmental initiatives, including large-scale clean-up projects on Mount Everest and Mount Fuji, while also engaging in disaster relief and other public service activities. His best-known book, "Ochikoborete Everest" ("Everest After Falling Behind"), reflects on his own setbacks and achievements, encouraging readers to pursue their goals with resilience and to find their own path in life.