Louis’ is a correct singular possessive form of the name Louis. Also, use this version for AP Style. E.g., “Louis’ car was destroyed in the accident.“ In contrast, the Chicago Manual of Style uses Louis’s as the singular possessive form. E.g., “Louis’s house is a bungalow.”
The following chart shows the different ways you can use the name Louis.
| Singular | Louis |
| Plural | Louis / Louises |
| Singular possessive | Louis’s / Louis’ |
| Plural possessive | Louis’ /Louises’ |
As you can see, the singular and plural forms of the name Louis are the same. Furthermore, Louis is a French name and the original plural in French. However, the plural form Louises is also correct.
Here are some examples of the different forms of Louis in sentences.
- Singular: Louis said he would be home late this evening.
- Plural: The palace contains the chambers of all the Louis of France.
- Singular possessive: Louis’ car is the one parked behind mine.
- Singular possessive: Louis’s wife is a paramedic.
- Plural possessive: Have you seen the three Louis’ drinks?
The singular possessive forms are the same in terms of meaning. However, according to the Associated Press Stylebook, you should use Louis’ without the extra “s.”
In contrast, the Chicago Manual of Style states that you should use Louis’s as the singular possessive form.
Furthermore, whichever version you decide to use in your pieces of writing, make sure you use the same version throughout.
Getting possessives wrong in your writing can make it look amateurish. Therefore, you should keep reading the rest of the page to learn more about the different possessive forms of the name Louis.
Louis’s
The term Louis’s is a singular possessive form of the name Louis. Therefore, you should use it to indicate that something belongs to a person named Louis.
- Louis’s children attend the same school as mine.
- Louis’s office is downtown.
Louis’s is the most common version in both the US and the UK. However, the difference between the names Louis’s and Louis’ is wider in American English than in British English.
In addition, you should use Louis’s if you are writing a text that follows the Chicago Manual of Style.
Louis’
The term Louis’ is also a correct singular possessive form of the name Louis.
Although this is the less common of the possessive forms, you should use this version whenever you are writing a text that follows AP Style.
- Louis’ mother is staying with us for Thanksgiving.
- Louis’ face looked very pale.
Furthermore, even though plural possessives of names are not common, Louis’ is the correct form, which you make by adding an apostrophe to the plural form of Louis, which is Louis.
- The different Louis’ famous palaces were built across France over several centuries.