diff --git a/news/changelog-1.7.md b/news/changelog-1.7.md
index b4a259c006d..a4f29af34e9 100644
--- a/news/changelog-1.7.md
+++ b/news/changelog-1.7.md
@@ -17,6 +17,10 @@ All changes included in 1.7:
 
 - ([#11701](https://github.com/quarto-dev/quarto-cli/issues/11701)): Wrap HTML emitted by EJS templates in `{=html}` blocks to avoid memory blowup issues with Pandoc's parser.
 
+## Blog projects
+
+- ([#11745](https://github.com/quarto-dev/quarto-cli/issues/11745)): Fix categories links under post title in post with url encoded path (e.g. with space or other special characters).
+
 ## Book projects
 
 - ([#11520](https://github.com/quarto-dev/quarto-cli/issues/11520)): Book's cover image now escapes lightbox treatment, which was incorrectly applied to it when `lightbox: true` was set in the book's configuration.
diff --git a/src/resources/formats/html/quarto.js b/src/resources/formats/html/quarto.js
index f49812ebcbc..a71a420fce5 100644
--- a/src/resources/formats/html/quarto.js
+++ b/src/resources/formats/html/quarto.js
@@ -238,9 +238,10 @@ window.document.addEventListener("DOMContentLoaded", function (_event) {
         for (const listingPath of listingPaths) {
           const pathWithoutLeadingSlash = listingPath.listing.substring(1);
           for (const item of listingPath.items) {
+            const encodedItem = encodeURI(item);
             if (
-              item === currentPagePath ||
-              item === currentPagePath + "index.html"
+              encodedItem === currentPagePath ||
+              encodedItem === currentPagePath + "index.html"
             ) {
               // Resolve this path against the offset to be sure
               // we already are using the correct path to the listing
diff --git a/tests/docs/playwright/blog/simple-blog/posts/post with space/image.jpg b/tests/docs/playwright/blog/simple-blog/posts/post with space/image.jpg
new file mode 100644
index 00000000000..5d5ad1f4d2e
Binary files /dev/null and b/tests/docs/playwright/blog/simple-blog/posts/post with space/image.jpg differ
diff --git a/tests/docs/playwright/blog/simple-blog/posts/post with space/index.qmd b/tests/docs/playwright/blog/simple-blog/posts/post with space/index.qmd
new file mode 100644
index 00000000000..006bd1211fe
--- /dev/null
+++ b/tests/docs/playwright/blog/simple-blog/posts/post with space/index.qmd	
@@ -0,0 +1,13 @@
+---
+title: "testing post with space"
+author: "Harlow Malloc"
+date: "2024-12-28"
+categories: [news, code, analysis]
+image: "image.jpg"
+---
+
+This is a post folder name with space
+
+```{r}
+1 + 1
+```
diff --git a/tests/docs/playwright/blog/simple-blog/posts2/post with space/image.jpg b/tests/docs/playwright/blog/simple-blog/posts2/post with space/image.jpg
new file mode 100644
index 00000000000..5d5ad1f4d2e
Binary files /dev/null and b/tests/docs/playwright/blog/simple-blog/posts2/post with space/image.jpg differ
diff --git a/tests/docs/playwright/blog/simple-blog/posts2/post with space/index.qmd b/tests/docs/playwright/blog/simple-blog/posts2/post with space/index.qmd
new file mode 100644
index 00000000000..006bd1211fe
--- /dev/null
+++ b/tests/docs/playwright/blog/simple-blog/posts2/post with space/index.qmd	
@@ -0,0 +1,13 @@
+---
+title: "testing post with space"
+author: "Harlow Malloc"
+date: "2024-12-28"
+categories: [news, code, analysis]
+image: "image.jpg"
+---
+
+This is a post folder name with space
+
+```{r}
+1 + 1
+```
diff --git a/tests/docs/playwright/blog/simple-blog/posts3/post with space/image.jpg b/tests/docs/playwright/blog/simple-blog/posts3/post with space/image.jpg
new file mode 100644
index 00000000000..5d5ad1f4d2e
Binary files /dev/null and b/tests/docs/playwright/blog/simple-blog/posts3/post with space/image.jpg differ
diff --git a/tests/docs/playwright/blog/simple-blog/posts3/post with space/index.qmd b/tests/docs/playwright/blog/simple-blog/posts3/post with space/index.qmd
new file mode 100644
index 00000000000..006bd1211fe
--- /dev/null
+++ b/tests/docs/playwright/blog/simple-blog/posts3/post with space/index.qmd	
@@ -0,0 +1,13 @@
+---
+title: "testing post with space"
+author: "Harlow Malloc"
+date: "2024-12-28"
+categories: [news, code, analysis]
+image: "image.jpg"
+---
+
+This is a post folder name with space
+
+```{r}
+1 + 1
+```
diff --git a/tests/integration/playwright/tests/blog-simple-blog.spec.ts b/tests/integration/playwright/tests/blog-simple-blog.spec.ts
index 01981c6e0b8..ed6151acc5b 100644
--- a/tests/integration/playwright/tests/blog-simple-blog.spec.ts
+++ b/tests/integration/playwright/tests/blog-simple-blog.spec.ts
@@ -28,40 +28,41 @@ Object.entries(testPages).forEach(([postDir, pageName]) => {
       await expect(page.getByRole('link', { name: 'Welcome To My Blog' })).toBeHidden();
   });
 
-  const checkCategoryLink = async (page: Page, category: string, pageName: string) => {
+  const checkCategoryLink = async (page: Page, category: string, pageName: string, postTitle: string) => {
     await page.getByText(category, { exact: true }).click();
     await expect(page).toHaveURL(getUrl(`blog/simple-blog/_site/${pageName}#category=${encodeURIComponent(category)}`));
     await expect(page.locator(`div.category[data-category="${btoa(encodeURIComponent(category))}"]`)).toHaveClass(/active/);
+    await expect(page.getByRole('link', { name: postTitle })).toBeVisible();
   };
 
   test(`All Categories links are clickable ${postDir} pages`, 
     async ({ page }) => {
       // Checking link is working
       await page.goto(`./blog/simple-blog/_site/${postDir}/welcome/`);
-      await checkCategoryLink(page, 'news', pageName);
+      await checkCategoryLink(page, 'news', pageName, 'Welcome To My Blog');
       // Including for special characters
       await page.getByRole('link', { name: 'Welcome To My Blog' }).click();
-      await checkCategoryLink(page, 'euros (€)', pageName);
+      await checkCategoryLink(page, 'euros (€)', pageName, 'Welcome To My Blog');
       await page.getByRole('link', { name: 'Welcome To My Blog' }).click();
-      await checkCategoryLink(page, '免疫', pageName);
+      await checkCategoryLink(page, '免疫', pageName, 'Welcome To My Blog');
       await page.goto(`./blog/simple-blog/_site/${postDir}/post-with-code/`);
-      await checkCategoryLink(page, "apos'trophe", pageName);
+      await checkCategoryLink(page, "apos'trophe", pageName, 'Post With Code');
       // special check for when a page is not loaded from non root path
       await page.goto(`./blog/simple-blog/_site/${postDir}/welcome/#img-lst`);
-      await checkCategoryLink(page, 'news', pageName);
+      await checkCategoryLink(page, 'news', pageName, 'Welcome To My Blog');
+      // special check for post with space in page name
+      await page.goto(`./blog/simple-blog/_site/${postDir}/post with space/`);
+      await checkCategoryLink(page, 'news', pageName, 'testing post with space');
   });
 
   if (pageName !== 'table.html') {
     test(`Categories link on listing page works for ${pageName}`, async ({ page }) => {
       await page.goto(`./blog/simple-blog/_site/${pageName}`);
-      await checkCategoryLink(page, 'apos\'trophe', pageName);
-      await expect(page.getByRole('link', { name: 'Post With Code' })).toBeVisible();
+      await checkCategoryLink(page, 'apos\'trophe', pageName, 'Post With Code');
       await page.goto(`./blog/simple-blog/_site/${pageName}`);
-      await checkCategoryLink(page, 'euros (€)', pageName);
-      await expect(page.getByRole('link', { name: 'Welcome To My Blog' })).toBeVisible();
+      await checkCategoryLink(page, 'euros (€)', pageName, 'Welcome To My Blog');
       await page.goto(`./blog/simple-blog/_site/${pageName}`);
-      await checkCategoryLink(page, '免疫', pageName);
-      await expect(page.getByRole('link', { name: 'Welcome To My Blog' })).toBeVisible();
+      await checkCategoryLink(page, '免疫', pageName, 'Welcome To My Blog');
     });
   }
 });