Ao Nang Police confirmed that US national Randall Owen Johnson was arrested for the stabbing, which occurred near Sea Shell Sculpture at the southern end of the beach.
Police were informed of the incident at about 2am, after Australian Laim Michael Ross, 35, had been rushed to Ao Nang Hospital for a stab wound to his abdomen.
Mr Ross succumbed to his injuries at the hospital.
Johnson has been charged with physically injuring another person causing death, police confirmed in their report.
Details of the argument have yet to be made clear. However, the two men were believed to be sitting together when an argument broke out, resulting in the stabbing, police said.