This plugin is an implementation of the <a href="http://alexgorbatchev.com/wiki/SyntaxHighlighter" rel="nofollow ugc">Syntax Highlighter 2.1.364</a> by Alex Gorbatchev with a front end to allow configuring all the global settings that are available, such having the plugin automatically include languages to highlight, thereby improving page loading performance.
<h4>Syntax Supported</h4>
ActionScript3, Bash/shell, C#, C++, CSS, Delphi, Diff, 
Groovy, JavaScript, Java, JavaFX, Perl, PHP, Plain Text, 
PowerShell, Python, Ruby, Scala, SQL, Visual Basic, XML
<h4>Themes</h4>
Default, Django, Emacs, FadeToGrey, Midnight, RDark

Easy Google Syntax Highlighter

An implementation of Alex Gorbachev's Google Syntax Highlighter with a front end to allow configuration.

Nico

Despite two plugins already on wordpress.org I decided to write my own from scratch. The result is a minimalistic but powerful plugin with only ~250 lines of PHP.
<ul>
<li>Supports every possible Prism configuration.</li>
<li>Adds TinyMCE dropdown lost for <code><code class="language-xxx"> and <pre class="language-xxx"></code> for bash, css, js, markup, php, scss. (I can make a filter if you want to add more.)</li>
<li>Does not load prism on every page, only when needed.</li>
<li>Supports automatic detection of prism HTML.</li>
<li>Supports displaying code from custom fields with <code>[prism]</code> shortcode.</li>
<li>Developers may use the <code>prism</code> handle to enqueue the pre-registered script and style.</li>
<li>Has admin editor button for quick shortcode template snippet.</li>
<li>Has no options page by design.</li>
<li>Read more -> <a href="http://nextgenthemes.com/plugins/prism-syntax-highlighter-for-wordpress/" rel="nofollow ugc">Prism Syntax Highlighter for WordPress</a></li>
</ul>
Bundled Prism Version (2016-09-17)
Link: http://prismjs.com/download.html?themes=prism-okaidia&languages=markup+css+clike+javascript+bash+less+php&plugins=line-highlight+line-numbers+wpd+show-language
Skin: Okaida
Languages
<ul>
<li>Markup</li>
<li>CSS</li>
<li>C-like</li>
<li>JavaScript</li>
<li>Bash</li>
<li>PHP</li>
<li>Sass (Scss)</li>
</ul>
Plugins
<ul>
<li>Line Highlight</li>
<li>Line Numbers</li>
<li>WebPlatform Docs</li>
<li>Show Language</li>
</ul>

Prism Syntax Highlighter for WordPress

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Most lightweight, yet most configurable and advanced PrismJS WordPress integration plugin. Custom fields display (detached) supported.

Easy Google Syntax Highlighter vs Prism Syntax Highlighter for WordPress