In September 2019, Thitathorn was called up to the Thailand U23 for the SEA Games.

[2] On 14 November 2024, Thitathorn made his Thailand national team debut in a friendly match against Lebanon.

Thitathorn's twin younger brother Thitawee, who is also a footballer and plays as a right back.

[3] His older brother, Tatpicha Aksornsri, is also a footballer and plays as a goalkeeper.

[4] This biographical article related to a football defender from Thailand is a stub.