Last name หรรษาศิริพจน์ (หรรษาศิริพจน์ 
) , throughout the world, is a very rare family name. The family name หรรษาศิริพจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| หรรษาศิริพจน์ | Thailand |