Here are some links to help get you started - just type in "Mexican last names" or "Mexican surnames" to get even more answers from your search engine.
Some of them include:DavilaDavalosDiazDominguezDuranDuarte
some Mexican names would be paco or pablo some last names could be alihandro or abran hope this helps by the way im only 9 and i can answer it!
Valenzuela and Vasquez are two...
Here's a good link listing the top 1,000 American last names!
There are many Mexican surnames (last names) but here are some.AguilarAlvarezCastilloCastroChavezCruzDelgadoDiazEspinozaFernandezFloresGarciaGarzaGomezGonzalezGutierrezGuzmanHernandezHierraJiminezLopezMartinezMedinaMendezMendozaMoralesMorenoMunozNunezOrtegaOrtizPenaPerezRamirezRamosReyesRiosRiveraRodriguezRomeroRuizSalazarSanchezSantiagoSotoTorresValdezVargasVasquezVega
Beaverhausen
Balboa, Bocanegra, Barco, and Benevidez; to name four.
Some of the Mexican middle names includes Pastasia,Rufina and Bartola.
You know my friend that's a good question, i have no idea, but thinking about her last name, she has to have some relation with Mexican heritage.
Any last name that you like is a good one! Your characters are yours - you don't have to ask some anonymous person on the internet about them.Here's a good LINK to a list of last names you might like.
Some popular Mexican girl names include Maria, Guadalupe, Lupita, and Carmen.
Some of them include:Boys:MiguelJoseJuanJesusAndresAlbertoGirls:MariaRosaGuadalupeEsmeralda