Obeng is a surname. Notable people with the surname include:
Curtis Obeng (born 1989), English footballer Eddie Obeng (born 1959), British educator and writer Ernest Obeng (born 1956), Ghanaian sprinter Francis Obeng (born 1986) Ghanaian footballer James Kojo Obeng, Ghanaian politician and teacher Kwadwo Obeng Junior (born 1999), Ghanaian professional footballer Letitia Obeng (1925–2023), first Ghanaian woman to obtain a degree in zoology and the first to be awarded a doctorate Michael K. Obeng (born 1973), American plastic surgeon Paul Victor Obeng (1947–2014), Ghanaian mechanical engineer and politician Richard Emmanuel Obeng (1877–1951), Ghanaian writer Richard Obeng (born 1981), Ghanaian politician Samuel Obeng (born 1997), Ghanaian footballer Samuel Obeng (linguist), professor of linguistics at Indiana University Seth Obeng (born 1945), Ghanaian soldier William Obeng (born 1983), American football player