Of the sea or lady of the sea
Martiza is a rare variant of Maritza, which is a Spanish diminutive of Maria. It is often associated with the Latin word 'marinus', meaning 'of the sea', or interpreted as a combination of Maria and Elizabeth.
Less common today
Martiza isn't in the latest US Top 1000. It last peaked at #3,773 in 1990.
US births per 5-year period, 1990βpresent (SSA data).