Begins or Ends with O

Italian variation of Leon.

Latinizing Lawrence gives it a whole new lease on life. Like Leonardo, Lorenzo has been integrated into the American stockpot of names, partly via actor Lorenzo Lamas. Other associations are with Lorenzo de' Medici, the Florentine Renaissance merchant prince and art patron, Renaissance artists Ghiberti and Lotto, and the upstanding young man who married Shylock's daughter Jessica in Shakespeare's The Merchant of Venice.

A vibrant, operatic choice with plenty of flair and plenty of familiarity too. Popular in Italy, Chile, Uruguay, and Brazil, it also ranks in the Top 500 in France and the US. Operatic tenor Luciano Pavarotti and football manager Luciano Spalletti are two notable bearers

Mime Marcel Marceau actually had two versions of the same name. Marcel, Marceau, Marcella, Marcus, Mark -- all are variation of the Roman mythological name Mars, the god of war.

Based on the ancient name Marcellus, drawn from Mars the god of war, Marcello -- it's pronounced mar-chell-o -- is one of the most lush and attractive Latin names.

Simple and universal, Marco is a Latin classic that would make a much livelier namesake for an Uncle Mark. It was used for her son by actress Jill Hennessy and goes well with surnames of any nationality.

Many may associate Mario with the popular platform game - unsurprising when it's the 5th best-selling video game worldwide, and was voted the 2nd best game ever by IGN in 2024. The titular plumber was apparently named after American businessman, Mario Segale, who rented a warehouse to Nintendo, and this in itself reflects that Mario is much more established than just a name for a video game character.

Marlow is a suave, unusual surname-name that was chosen by Celine designer Phoebe Philo for her older son. Caveat: it sounds just like the feminine Marlo and, with the addition of a final 'e', has begun to be used for girls.

Massimo is a Latin charmer and while it might feel like a big name for a baby (or anyone, really), it has a touch of gentleness about it too, owing to the S sounds. A charismatic member of the Maximus/Magnus family, Massimo means "greatest" and has been a enduring favorite in Italy, where it has remained in the Top 100 over the last two decades

This attractively energetic Italian version of the classic Matthew is primed to move further and further into mainstream American nomenclature. Mateo is technically the Spanish version, but many parents in the US use the two spellings interchangeably.

With the ubiquitous Max heard at every playground across the US, international versions have been gaining traction in an attempt to provide a fresh avenue to the highly sought nickname. This Spanish iteration has been in the US Top 1000 since the early 2000s and is currently trending upwards.

An attractive surname, but also the name of a popular cookie.

Milo is most commonly considered to be Germanic name derived from the Latin word miles, meaning "soldier." However, there is evidence to suggest it also may have independently spawned from the Slavic root milu, meaning "merciful." Milo predates brother name Miles, a variation that evolved when the name immigrated to the British Isles in the Middle Ages. Mylo is an alternate spelling.

Miro comes from the Slavic root word mir meaning "peace, world". Sometimes Miro is used as a diminutive of longer names like Miroslav or Vladimir, but it can also be given as a name in its own right. Miro has a wonderful meaning and fits right in with trendy names Arlo and Milo, as well as being an artistic honor name for Spanish painter and sculptor Joan Miró.

Morocco is an attractive and rhythmic name, evocative of such fabled cities as Casablanca, Tangier and Marrakesh, in a country whose unique landscape and rich culture attracted such twentieth century writers as Tennessee Williams, Paul Bowles and William Burroughs.

Closer to Nike than to Nicholas, this is an attractive, viable import. It's also one of several Italian and Spanish baby names that get you to the stylish and attractive nickname Nico.

Popular in Croatia, Spain, New Zealand, and Slovenia, Niko has also been rising up the US popularity charts for boys since the late 2000s. Fresher than Nicholas, spikier than Nico, it currently ranks just outside the US Top 300.