| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 301 | Lorenzo | Spanish | Laurence: From the place of laurel trees. Lorenzo was the name of Jessica's lover in Shakespeare's 'The Merchant of Venice'. Lorenzo de' Medici was a patron of Michaelangelo and Da Vinci. | M | |
| 302 | Lucero | Spanish | Spanish form of Luke 'light'. | M | |
| 303 | Luciano | Spanish | Form of Luke. 'Light; illumination.'. | M | |
| 304 | Lucila | Spanish | Diminutive form of Lucia 'light; illumination.'. | M | |
| 305 | Lucio | Spanish | Spanish form of Luke 'light'. | M | |
| 306 | Luis | Spanish | Form of Louis. | M | |
| 307 | Macario | Spanish | Happy. | M | |
| 308 | Macerio | Spanish | Form of Mace which is a medieval weapon used by knights. | M | |
| 309 | Mannie | Spanish | A form of Emmanuel 'God is with us'. | M | |
| 310 | Manny | Spanish | Diminutive of Manuel: God is with us. | M | |
| 311 | Mano | Spanish | An abbreviation of Manuel 'God is with us'. | M | |
| 312 | Manolito | Spanish | A form of Emmanuel 'God is with us'. | M | |
| 313 | Manolo | Spanish | A form of Emmanuel 'God is with us'. | M | |
| 314 | Manuel | Spanish | Spanish form of Emanuel: God is with us. | M | |
| 315 | Manuelo | Spanish | A form of Emmanuel 'God is with us'. | M | |
| 316 | Marco | Spanish | Warring. | M | |
| 317 | Marcos | Spanish | Of Mars. The Roman fertility god Mars for whom March was named. | M | |
| 318 | Mariano | Spanish | Masculine form of Marie. | M | |
| 319 | Mario | Spanish | Warring. | M | |
| 320 | Marquez | Spanish | A title name ranking below duke and above earl. | M | |