Modern invented name, likely a variant of Tywan or Taiwan
Tywuan is a modern American creation, likely formed by combining the popular prefix 'Ty-' with the suffix '-wuan'. It is often considered a phonetic variant of the name Taiwan, referring to the island nation, or a stylistic elaboration of names like Tywan or Tyrell.
Less common today
Tywuan isn't in the latest US Top 1000. It last peaked at #6,515 in 1991.
US births per 5-year period, 1990βpresent (SSA data).