diff --git a/.changeset/cute-bats-chew.md b/.changeset/cute-bats-chew.md
new file mode 100644
index 0000000000..c360c01735
--- /dev/null
+++ b/.changeset/cute-bats-chew.md
@@ -0,0 +1,5 @@
+---
+'@primer/css': patch
+---
+
+Add --fontStack-sansSerif to $body-font variable
diff --git a/src/support/variables/typography.scss b/src/support/variables/typography.scss
index ae02718b43..97817a3f98 100644
--- a/src/support/variables/typography.scss
+++ b/src/support/variables/typography.scss
@@ -32,7 +32,7 @@ $lh-condensed: 1.25 !default;
 $lh-default: 1.5 !default;
 
 // Font stacks
-$body-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji' !default;
+$body-font: var(--fontStack-sansSerif, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji') !default;
 
 // Monospace font stack
 // Note: SFMono-Regular needs to come before SF Mono to fix an older version of the font in Chrome