Greg Child (born April 12, 1957) is an Australian-born rock climber, mountaineer, author and filmmaker.He is a writer for "Outside magazine" and has authored several books: "Thin Air: Encounters in the Himalayas", "Mixed Emotions: Mountaineering Writings of Greg Child", "Postcards from the Ledge", "Over the Edge" and "Climbing Free" (co-authored with Lynn Hill). In 1987, Child was honoured with the American Alpine Club’s Literacy Award for his prolific and insightful mountaineering literature.