La with Proper Names

Ordinary proper names identify their referents by themselves, so they normally appear without la: Marta, Parizo, Kanado, Esperanto. However, “never use la with a proper name” is too simple. Esperanto distinguishes a name that is inherently a proper name from an ordinary noun phrase that has become a name, such as la Ruĝa Maro.

The system is based on the phrase's grammatical head and conventional status, not on English capitalization or article use. Some edge cases vary in established usage, especially plural geographical names and organization names.

Ordinary proper names need no article

Personal names, ordinary place names, country names, and noun-form language names are inherently identifying. Do not add la merely because the referent is definite.

These names are definite in meaning but articleless in form. La is not a universal badge of definiteness; proper names already perform the identifying work.

Fully Esperantized names in -o take case endings normally:

Johanon and Parizon would carry -n when they are direct objects or mark direction without a preposition. The article still does not appear.

Added descriptions versus words inside the name

An adjective that is conventionally part of a normal proper name does not by itself trigger la: Norda Ameriko, Nova Zelando, Sankta Petro. But when an adjective is an added description or contrast rather than part of the name, the modified phrase normally uses la.

In la juna Marta, juna comments on Marta; it is not part of her name. In la alia Londono, the modifier selects one bearer of a repeated name. Compare these with Norda Ameriko, where Norda belongs to the established geographical name and no article is normally used.

Descriptive names headed by ordinary nouns

Some names consist of ordinary nouns and adjectives. Because their head word is still an ordinary noun—maro, golfo, ursino, bazaro—they normally take la.

The article is invariant. In an object phrase, the ordinary noun and its adjective carry case: Ni transiris la Ruĝan Maron (“We crossed the Red Sea”).

This distinction can look arbitrary because names become conventional over time. The practical test is whether the main word functions independently as an ordinary common noun in the name. Established forms must still be learned, especially for geography.

A common noun followed by an identifying name

When a proper name follows a common noun as an identifying label, the common noun remains the grammatical head. The whole phrase is definite and normally takes la.

Compare Kioto with la urbo Kioto. The short form is a proper name and needs no article; the longer phrase is headed by ordinary urbo, so it uses la. Similarly, Nilo stands alone, but la rivero Nilo contains the common noun rivero.

An indefinite reading is logically possible if the listener does not know the person: amiko, kiu nomiĝas Johano. The shorter amiko Johano without la is attested but can be unclear, so an explicit relative clause is the better pedagogical choice.

Titles before personal names

Titles such as sinjoro, sinjorino, doktoro, profesoro, and reĝo create a genuine area of variation. When the title is an informative common noun, normal determination favors la: la reĝo Karolo, “the king named Karolo.” When a courtesy title is treated as a routine part of the name, speakers often omit la: sinjorino Berto, doktoro Silva.

The adjective juna makes doktoro clearly descriptive and informative, so la is natural. This variation is accepted rather than a defect in the language. In direct address, omit the article regardless:

Direct address is a separate syntactic role and does not take la.

Traditional names of works and plural names

Several famous religious and classical works conventionally take la, including la Biblio, la Korano, la Iliado, and la Odiseado.

These are established lexical conventions. They do not license la before every book title; quoted and ordinary proper titles are generally treated as proper names without an added Esperanto article.

Plural proper names show accepted variation. Mountain ranges and island groups often occur with la: la Alpoj, la Andoj, la Filipinoj. The forms without la also occur for some names, so consult established usage rather than applying a mechanical rule.

Country names are otherwise treated as normal proper names, even when English uses an article. Say Nederlando, not la Nederlando.

Do not import foreign articles

A source language may include an article as part of a place name, but Esperanto normally uses its conventional Esperanto name without adding la: Hago (“The Hague”), Havro (“Le Havre”), Kairo, Riado.

Some foreign articles have become part of an Esperantized name itself, as in La-Pazo/Lapazo and Los-Anĝeleso/Losanĝeleso. There, the element belongs to the lexical name; it is not the freely added Esperanto article.

This area is genuinely conventional. There is no perfect logical shortcut for every international name. Prefer established Esperanto forms and treat inconsistent historical examples as variation, not as a new general rule.

Other determiners can contrast people with the same name

A proper name may need a demonstrative or description when several people share it. That determiner replaces la.

The first use of Marko is pluralized as Markoj because it counts two bearers of the same name. Tiu Marko selects one of them. Do not say la tiu Marko: tiu already fills the determiner role.

Specificity, introduction, and names

A name normally asks the listener to identify its bearer, but a new person can be introduced by combining an indefinite common noun with a naming clause.

The first phrase introduces an unknown person as virinon. Once the name has been established, Lejla itself identifies her. Esperanto does not invent an indefinite article before either phrase.

Common Mistakes

Adding la before an ordinary personal name

Copying an English country article

Omitting la from a descriptive geographical name

Omitting la before a common noun plus identifying name

Using la in direct address

Key Takeaways

• Normal personal, city, country, and -o language names omit la.
• A modifier inside an established name does not trigger la, but an added descriptive or contrastive modifier normally does: Norda Ameriko versus la alia Londono.
• Descriptive names headed by ordinary nouns normally use la: la Ruĝa Maro.
• A common noun plus an identifying name uses la: la rivero Nilo.
• Courtesy titles may omit la when treated as part of a name; informative or modified titles generally use it.
• Traditional work names and plural geographical names have conventions and some accepted variation.
• Never import an article mechanically from English or another source language.