Possibly a modern variant of Jason or a surname derivative
Lason is a rare contemporary name likely created as a rhyming variant of the classic Greek name Jason, meaning 'to heal.' It may also function as a rare transferred use of an English surname, though its usage in the United States is primarily modern and phonetic.
Less common today
Lason isn't in the latest US Top 1000. It last peaked at #7,797 in 2011.
US births per 5-year period, 1990βpresent (SSA data).