How to change Language settings for Maps on iPhone 14

Re: How to change Language settings for Maps on iPhone 14

Seems you can either change the language for iPhone, or you can add another language.

Apple Support's online article: Change the language and region on iPhone - Apple Support

says:

1. Go to Settings  > General > Language & Region.
2. Set the following:

• • The language for iPhone.
• Your preferred form of address. (Choose feminine, masculine, or neutral.
• Turn on Share with All Apps so all apps personalize how they address you. Available for some primary languages, for example, Spanish.)
  • The region.
  • The calendar format.
  • The temperature unit (Celsius or Fahrenheit).
  • The measurement system (metric, US, or UK).
  • The first day of the week.
  • Live Text (text you can select in images to copy or take action on).

To add another language and keyboard to your iPhone, tap Add Language, then select a language.

See also Add or change keyboards on iPhone

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For Maps: you can Hear spoken directions in a different voice or language

1. Go to Settings  > Siri & Search.
2. Change any of the following:

• • Voice: Tap Siri Voice, then tap to hear the different options.
  • Language: Tap Language, then tap a language to select it as your primary Siri language.

Above is from: Change settings for spoken directions in Maps on iPhone - Apple Support

and

If you wish: See how to: Find your Maps settings on iPhone - Apple Support

All the best :-)