Likely a modern variant of Leyden, meaning from the valley
Laiden is a modern American invention, likely influenced by the popular '-aden' naming trend. It is often considered a variant of the English surname Leyden, which refers to a valley or a meadow, or potentially a phonetic spelling of the Dutch city Leiden.
Less common today
Laiden isn't in the latest US Top 1000. It last peaked at #4,215 in 2011.
US births per 5-year period, 1990βpresent (SSA data).