Langley Frederick George "Lang" Hancock, an Australian iron ore magnate, gained fame for discovering the world's largest iron ore deposit in 1952, becoming one of Australia's richest men. He maintained a high profile in business and politics. Hancock's personal life was marked by his marriage to Rose Porteous, a much-younger former maid, which caused conflict with his daughter, Gina Rinehart. Born in 1909 in Leederville, Perth, he spent his early years on his family's station in Western Australia. Hancock's interest in mining and prospecting was evident from a young age, and he discovered asbestos at Wittenoom Gorge at the age of ten. He later claimed to have discovered the Pilbara iron ore deposit in 1952. His life was also marked by his marriages and family controversies. Hancock's legacy is intertwined with his discoveries and business ventures, as well as the controversies surrounding his personal life and the environmental and health impacts of his mining activities.

Lang Jeffries (June 7, 1930 – February 12, 1987) was a Canadian actor known for his roles in both American and foreign films. He gained recognition for his portrayal of Skip Johnson in the adventure television series Rescue 8 from 1958 to 1960. Jeffries starred in several American films in the 1960s, including "Don't Knock the Twist" (1962) and "The Revolt of the Slaves" (1960), where he starred alongside his then-wife, Rhonda Fleming. His passion for acting led him to direct films when faced with uncooperative directors. Not only was Jeffries a talented actor, but he also ventured into real estate and the boat business in the US following his acting career. He married three times, with his third wife surviving him. Jeffries passed away on February 12, 1987, in Huntington Beach, California, after battling cancer. His legacy lives on through his notable film credits and contributions to the entertainment industry.

Lang is a surname of Germanic origin, closely related to Lange, Laing, and Long, all of which denote "tall." The Lang surname has been associated with numerous distinguished individuals across the globe. Notable figures include Gary Lang, a renowned Australian choreographer and dancer, and Jack Lang, a prominent Australian politician. In the European sphere, the name has been linked to influential personalities such as Andrew Lang, a Scottish philologist and translator of folk and fairy tales, and Fritz Lang, the acclaimed Austrian film director. In North America, the Lang name has been associated with various accomplished individuals, including k.d. lang, the celebrated Canadian singer-songwriter, and Eric M. Lang, a prominent Canadian game designer. These are just a few examples of the many accomplished individuals who have brought honor to the Lang name across different fields and continents.

Láng is a surname of Manchu-Chinese origin, meaning "minister" or "councillor" in imperial times. According to a 2013 study, it is the 242nd most common surname, with around 370,000 individuals bearing the name, accounting for 0.028% of the total population. Hebei province has the highest number of people sharing this surname. The name holds significance as the 48th name on the Hundred Family Surnames poem.The surname has its roots in the city of Lang, where Fei Bo, the grandson of Duke Yi of Lu, resided. Some descendants of Fei Bo changed their original surname to Lang. During the Qing dynasty, the Niohuru family of Manchu origin sinicized and adopted the surname Lang, which phonetically resembled "wolf" in Mandarin Chinese.Notable individuals bearing the surname Láng include Lang Jingshan, a renowned photographer, Lang Lang, an accomplished pianist, Lang Ping, a former volleyball player and coach, and Lang Zheng, a footballer. Additionally, Lang Shining, known as Giuseppe Castiglione, Lang Tzu-yun, a Taiwanese actress, and Lang Yongchun, a former Chinese news anchor, have contributed significantly to their respective fields.In addition to its Manchu-Chinese origins, the Lang surname is also associated with a Germanic origin surname of the same name.