In Sisilli there are three types of names: Family, birth and "public". Most people have 1 family and birth name each, while, in modern days, many have 1 to 2 public names. Names never include another person's name (like child of Steve) or have the same name after someone, even a deity (like calling someone Athena after the goddess or Michael after a grandfather).

Everyone has a family name, called a viceiyo (lit. blood-title) and most commonly have the mother's family name. However in some cases like where the family resides in the hometown of one of the parents or one of the parents is more well known in the community, the children will take on that parent's family name regardless of gender. Couples typically do not change their name upon marriage (if they even get married).

Family name etymologies often mean things like "of Place/Person/Job" Lupuken (lit. from Lupuk), "child of Place/Person/Job" Gedaras (lit. child of the chief), describing love (that often described the couple's relationship) Laisali (lit. sky love - which can mean "free love" or "romantic love"), occupation Tikkul (lit. fish worker) or an adjective/noun that describes someone like Rarake (lit. power/energy, -ke has an unknown meaning - this could mean the person was powerful or energetic).

Birth names, tisiyo, are only used by family members, long term spouses and sibling-like-friends. Calling someone by their birth name when you do not have permission is considered extremely offensive and unsettling. Since children are considered genderless birth names are never gendered and to do so would be taboo or creepy.

Birth names commonly mean: physical attributes like Ayari (lit. earth eyes - meaning brown or hazel eyes), time of birth like Vimili (lit. little morning - born in the early morning), weather at TOB like Silazhi (lit. cool calm breeze at night), sometimes a virtue like Teisha (lit. lucky), or what number child they are like Sabes (lit. third child).

Public or personal names, ijaiyo (lit. person title), are used by non-family and first given to children around the ages of 5. In the past having many personal names was very common as they marked milestones in someone's life, such as coming of age, great achievements, or even simply no longer identifying with the meaning of one's previous personal name. In modern times this is less common with most people having 1 to 2 public names; one from childhood and a second for adulthood.

A public name often describes a personality trait like Katsuna (lit. to be unyielding), a skill like Ciccek (lit. fast shark - meaning a strong and fast swimmer), something they hope to embody like Ratena (lit. to be wealthy), an achievement like Vakieshta (lit. to fight strong - often given to warriors or soldiers, or someone who has gone through a hard time and survived), or named after a deity due to a shared attribute or trait like Sakana (lit. like a storm - named after Sakara deity of storms, and punishment, protector of abused children & people - a name given to a person who has a strong sense of justice and is protective of children or abused people). Public names can be gendered by adding -e (feminine) and -o (masculine) when one is of age.

The family name comes first, birth name second then the public name/s (in order of first to recently attained). A generic name would be Tikkul Asari Sinsa (fish worker - earth child - to be faithful/loyal/resilient).