Change the language your Mac uses
Although your Mac is set to display the language of the country or region in which it was purchased, you can choose a different language to use. For example, if you bought your Mac in the United States but you work primarily in French, you can set your Mac to use French.
You can also choose different languages for individual apps. For example, if your system language is set to Simplified Chinese, but you prefer to use a certain app in English, you can do so.
Change the system language
On your Mac, choose Apple menu 
> System Preferences, then click Language & Region.
Do any of the following:
Add a language: Click the Add button 
, select one or more languages in the list, then click Add.
The list is divided by a separator line. Languages above the line are system languages that are fully supported by macOS and are shown in menus, messages, websites and more. Languages below the line aren’t fully supported by macOS, but may be supported by apps that you use, and shown in their menus and messages and on some websites.
If you can’t use the input source that’s selected in the Input menu to type a selected language, a list of available sources is shown. If you don’t add an input source now, you can add it later in the Input Sources pane of Keyboard preferences.
Change the primary language: Drag a different preferred language to the top of the Preferred languages list.
If macOS or an app supports the primary language, menus and messages are shown in that language. If it doesn’t, it uses the second language in the list, and so on. The language may also be used on websites that support the language.
The order of the languages in the list determines how text displays when you type characters in a script that belongs to more than one language. See If international fonts don’t display correctly.
If your Mac has multiple users and you want everyone to see the language you chose as the primary language in the login window, click the Action pop-up menu 
, then choose Apply to Login Window.
Choose the language you use for individual apps
On your Mac, choose Apple menu > System Preferences, then click Language & Region.
Do one of the following:
Choose a language for an app: Click the Add button , choose an app and a language from the pop-up menus, then click Add.
Change the language for an app in the list: Select the app, then choose a new language from the pop-up menu.
Remove an app from the list: Select the app, then click the Remove button 
. The app uses the default language again.
If the app is open, you may need to close and then reopen it to see the change.
How to Change Language on Mac, MacBook Air, Pro: macOS Big Sur/Catalina, Mojave, High Sierra
Last Updated on Feb 20, 2020
We glad to share here, How-To Tip for the latest macOS. It’s a Change language on your Mac. It might be Possible that you bought New Apple MacBook from the USA (United States of America) and you would like to work primarily as the French language, So that time you’ve to need Settings for Switch Language and region from the US English to French English. Even you have a question – How to Change language on any Mac? At all, you can get the solution to change language macOS.
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This tip becomes most useful for Apple’s New Released 12-inch MacBook and 13-inch MacBook Pro, MacBook Air as well MacMini and iMac.
Way for Change language on macOS on Mac, MacBook Air, MacBook Pro
The apple set default language and region according to selling the country. So that users get Mac display language of the country in which it was purchased. You can use your Mac up to possible languages Such as English US, French, Chinese, Japanese, German, Spanish, Italian, Dutch, Russian, Polish, Spanish and more.
Step For How to Change Language on Mac
- Step 1. Select Apple Menu
- Step 2. Click on System Preferences
- Step 3. Click On Language & Region.
Now, you can follow one of the below options:
Option 1. Add a language:
Click on Add +, Select one or more language in the list and then Click Add.
What you can see in the pane language is divided by a separator line: above the line are for System languages that are full support for OS X and its Shown in Menu, Messages and more.
Second-line language options aren’t fully supported for OS X, but it may be supported for OS X app that you use and shown in their menus and Messages.
Option 2.
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Change the primary language: Dreg a Different Preferred language to the top of the preferred languages list. That’s it. How seems this tip for change language on macOS Catalina, High Sierra, EI Capitan, Yosemite on MacBook Air, MacBook Pro, and iMac.
How to Add & Switch Languages in Mac OS X
Nearly all Mac users run Mac OS in their primary language and mother tongue, but for polyglots and those aiming to be bilingual or trilingual, adding multiple new languages to Mac OS X can have obvious benefits. We’ll show you how to add a new language and how to change to that new language, which will impact how things appear and read on the Mac.
Adding a new language doesn’t remove the prior language, it becomes an additional option. In fact, you’ll have the ability to easily switch between the languages and set one or the other as a primary language at any time, and change between them as needed. Something else to keep in mind is that when you switch the language on a Mac, many things change with it, from menu items, to date format, measurements, and assorted other items through the system – these can all be adjusted individually if desired, but for our purposes in this tutorial we’re going to focus on adding and changing the language in Mac OS X.
How to Add & Change to a New Language to Mac OS X
You can add as many languages as you want, but in this walkthrough we’ll focus on just adding a second new language and changing to that as the new language default.
- From the Apple menu visit “System Preferences”
- Choose “Language & Region” preference panel
Under the ‘Preferred languages’ section, click on the plus [+] button
Navigate to and select the language you want to add, then click on the Add button
Decide whether you want to use the newly added language as your primary language, or to continue using the original language as the primary language
That’s all there is to it, easy enough. If you set the new language as your primary language, menu items will refresh, but if you want everything to switch over to your new language choice then you should log out or reboot the Mac so that applications refresh to the new language selection as well.
If you are actually going to use the secondary language full time or you are aiming to improve your proficiency, learning the keystrokes to change the keyboard language can be very advantageous, and adding an accompanying voice to the Mac can be beneficial as well.
By the way, if you’re looking to add multiple new languages that you can switch from, use the typical multiple-selection tools in Mac OS X to choose a few at a time. For example, holding down the Command key and clicking selections allows you to pick two noncontiguous language selections to add:
While this is primarily aimed at those who speak and read multiple languages to begin with, it can also be very useful for people looking to improve their fluency in another language. For example, I have a friend who is becoming conversationally fluent in Spanish, and adding (and switching between) the language to daily computing use has further helped along that process.
You may also find it useful to add and change languages on iOS too if you’re an iPhone or iPad user.