Using graphic elements like this world map, to see in which countries or regions of the world the surname Martinez-ortiz is more common, is of great help.
The quantity of people with the surname Martinez-ortiz that we can find in each country can help us discern the origin of the surname Martinez-ortiz, as logic tells us that the place with the most people surnamed Martinez-ortiz will be the country or area of origin of the surname Martinez-ortiz.