I am from Ukraine.
When I open Jenkins in the browser I see all the UI in Russian.
I am running Jenkins on Windows.
However - there is no Russian in Windows co
You have to install the Locale plugin, which is already available but not installed as default, and then under Manage System > Locale insert "Locale.ENGLISH" in java style.
By default, Jenkins uses the default language of your browser, if it is set. To change it, you could do the follow.
1. Download and install the locale plugin:
Jenkins will download the plugin and restart if not job has been scheduled.
2. Set the language:
Once the plugin has been installed, change the language using following steps:
From the main page of Jenkins, go to Manage Jenkins -> Configure System.
Under Locale, there will be a field called "Default Language". Enter the new language. It could be "en" or "ENGLISH".
Under the text box, check the checkBox called "Ignore browser preference and force this language to all users".