Theo is a given name and a hypocorism. Greek origin Many names beginning with the root "Theo-" derive from the Ancient Greek word theos (θεός), which means god, for example: Feminine names: Thea, Theodora, Theodosia, Theophania, Theophano and Theoxena Masculine names: Theodore, Theodoros/Theodorus, Theodosius, Theodotus, Theophanes, Theophilus, Theodoret and Theophylact Germanic origin Many other names beginning with "Theo-" do not necessarily derive from Greek, but rather the old Germanic "theud", meaning "people" or "folk". These names include: Theobald, Theodahad, Theodard, Theodebert, Theodemir, and Theodoric People with the name Theo See Theo and Théo for a current alphabetical list of all people with the first name Theo or Théo in the English Wikipedia. Among better known people with this name are: Theo Adam (1926-2019), German classical bass-baritone Theo Albrecht (1922–2010), German entrepreneur and billionaire Theo Angelopoulos (1935–2012), Greek filmmaker, screenwriter and film producer Theo Bos (born 1983), Dutch road and track cyclist, five-time world champion Theo van Doesburg (1883–1931), Dutch artist, founder and leader of the De Stijl art movement Theo Epstein (born 1973), American baseball executive, three-time World Series champion Theo Fleury (born 1968), Canadian ice hockey player Theo Geisel (1904–1991), American author better known as Dr. Seuss Theo van Gogh (art dealer) (1857–1891), brother and supporter of painter Vincent van Gogh Theo van Gogh (film director) (1957–2004), Dutch film director, great-grandson of the above Theo Heemskerk (1852–1932), Dutch Prime Minister Theo Hernandez (born 1997), French footballer Theo Hutchcraft (born 1986), English singer and songwriter Theo Jackson (disambiguation), multiple people Theo James (born 1984), English actor Theo Jansen (born 1948), Dutch artist and kinetic sculptor Theo Janssen (born 1981), Dutch footballer Theo Jörgensmann (born 1948), German jazz clarinetist and composer Théo Lefèvre (1914–1973), Belgian Prime Minister Theo Lingen (1903–1978), German actor, film director and screenwriter Theo Mackeben (1897–1953), German composer and conductor Theo Osterkamp (1892–1975), German flying ace in both World War I and World War II Theo Pelouze (1807–1867), French chemist Theo de Raadt (born 1968), South African-born Canadian founder and leader of the OpenBSD and OpenSSH projects Theo Ratliff (born 1973), American basketball player (Theophalus) Theo Rossi (born 1975), American actor and producer Théo van Rysselberghe (1862–1926), Belgian neo-impressionist painter Théo Sarapo (1936–1970), French singer and actor, husband of Édith Piaf Theo Smyrnaeus (fl. 100 CE), Greek philosopher and mathematician (Theon) Theo Sommer (1930–2022), German newspaper editor and intellectual Theo Timmer (born 1949), Dutch motorcycle racer Theo Timmermans