diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index d2104c9fd9..480655a95b 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -35,6 +35,7 @@ Changelog
  * Fix: Ensure tag fields correctly show in both dark and light Windows high-contrast modes (Albina Starykova)
  * Fix: Ensure new tooltips & tooltip menus have visible borders and tip triangle in Windows high-contrast mode (Juliet Adeboye)
  * Fix: Ensure there is a visual difference of 'active/current link' vs normal links in Windows high-contrast mode (Mohammad Areeb)
+ * Fix: Avoid issues where trailing whitespace could be accidentally removed in translations for new page & snippet headers (Florian Vogt)
 
 
 4.1.1 (xx.xx.xxxx) - IN DEVELOPMENT
diff --git a/CONTRIBUTORS.rst b/CONTRIBUTORS.rst
index 4061bbb09b..3431a4f1a1 100644
--- a/CONTRIBUTORS.rst
+++ b/CONTRIBUTORS.rst
@@ -663,6 +663,7 @@ Contributors
 * Aman Pandey
 * Doug Harris
 * Mohammad Areeb
+* Florian Vogt
 
 Translators
 ===========
diff --git a/docs/releases/4.2.md b/docs/releases/4.2.md
index 48063654e0..10832bc962 100644
--- a/docs/releases/4.2.md
+++ b/docs/releases/4.2.md
@@ -46,6 +46,7 @@ depth: 1
  * Ensure tag fields correctly show in both dark and light Windows high-contrast modes (Albina Starykova)
  * Ensure new tooltips & tooltip menus have visible borders and tip triangle in Windows high-contrast mode (Juliet Adeboye)
  * Ensure there is a visual difference of 'active/current link' vs normal links in Windows high-contrast mode (Mohammad Areeb)
+ * Avoid issues where trailing whitespace could be accidentally removed in translations for new page & snippet headers (Florian Vogt)
 
 ## Upgrade considerations
 
diff --git a/wagtail/admin/templates/wagtailadmin/shared/headers/page_create_header.html b/wagtail/admin/templates/wagtailadmin/shared/headers/page_create_header.html
index b979afbbb6..dcf25bb07e 100644
--- a/wagtail/admin/templates/wagtailadmin/shared/headers/page_create_header.html
+++ b/wagtail/admin/templates/wagtailadmin/shared/headers/page_create_header.html
@@ -2,7 +2,7 @@
 {% load wagtailadmin_tags i18n %}
 
 {% block header_content %}
-    {% trans 'New: '|add:content_type.model_class.get_verbose_name as title %}
+    {% blocktrans trimmed asvar title with model_name=content_type.model_class.get_verbose_name %}New: {{ model_name }}{% endblocktrans %}
     {% breadcrumbs parent_page 'wagtailadmin_explore' url_root_name='wagtailadmin_explore_root' include_self=True trailing_breadcrumb_title=title %}
 
     <h1 class="w-sr-only">
diff --git a/wagtail/snippets/templates/wagtailsnippets/snippets/headers/create_header.html b/wagtail/snippets/templates/wagtailsnippets/snippets/headers/create_header.html
index 0fab72545d..2e7220f05c 100644
--- a/wagtail/snippets/templates/wagtailsnippets/snippets/headers/create_header.html
+++ b/wagtail/snippets/templates/wagtailsnippets/snippets/headers/create_header.html
@@ -12,7 +12,7 @@
 
 {% block header_content %}
     {% with model_opts.verbose_name|capfirst as model_name %}
-        {% trans 'New: '|add:model_name as title %}
+        {% blocktrans trimmed asvar title %}New: {{ model_name }}{% endblocktrans %}
         {{ block.super }}
 
         <h1 class="w-sr-only">