How to remove blog name from page title in individual blog posts



Yes. Edit your template, and find this code:
<title><data:blog.pageTitle/></title>
Replace it with
<b:if cond='data:blog.pageType == &quot;item&quot;'>
  <title>
    <data:blog.pageName/> </title>
  <b:else/>
  <title>
    <data:blog.pageTitle/>
  </title>
</b:if>
An alternative code if you want to display the blog title after the post title (in [Page name] | [Blog title] format)
<b:if cond='data:blog.pageType == &quot;item&quot;'>
  <title>
    <data:blog.pageName/> |
    <data:blog.title/>
  </title> <b:else/>
  <title>
    <data:blog.pageTitle/>
  </title>
</b:if>