Then just follow the diagram below. Just for fun, see the name Sya in Hieroglyphics, learn about ancient Egyptian Hieroglyphics and write a Hieroglyphic message. Learn about nautical flags and see your name or message written in nautical flags, on the Sya in Nautical Flags page.ess than 5 boys were given the name. View the Sya Name Popularity Page to see how the popularity trend for Sya has changed since 1880, or to compare the popularity of Sya to other names. Sya falls into the season name category.