Neil Mickelson

This plugin allows page authors to easily list any child pages of a given page by simply using a new <code>[childpages]</code> shortcode. A basic list of the children to the page you’re editing will be returned with the shortcode <code>[childpages]</code>. More-complex versions of the shortcode, as described in the Usage section, give you additional control over the output results.
<h3>Usage</h3>
The basic shortcode to get a page list is <code>[childpages]</code>. Wherever you have a need to drop of a list of child pages for the page you’re currently authoring, just enter that code in either the Visual or HTML editor. The list that results will not be shown with a title, will be one level deep, will not exclude any child pages or authors, and will be sorted by page order and then by title.
To list the child pages with a title, use the enclosing form of the shortcode, like this:
<blockquote>
[childpages]List Title[/childpages]
</blockquote>
The text between the opening and closing shortcodes will be the title of the resulting list. It is being passed to the <code>title_li</code> attribute in the <code>wp_list_pages()</code> template tag.
To change the defaults used to format the list, pass the appropriate parameters in your shortcode, like this:
<blockquote>
[childpages depth=2 sort_column=ID]
</blockquote>
The parameters you provide are passed to <code>wp_list_pages()</code>. The following parameters are supported; usage details for these parameters can be found in the WordPress Codex.
<ul>
<li><code>depth</code></li>
<li><code>child_of</code></li>
<li><code>exclude</code></li>
<li><code>echo</code></li>
<li><code>authors</code></li>
<li><code>sort_column</code></li>
</ul>
For more information, visit the plugin’s home page at <a href="http://scottierocket.com/wordpress-stuff/sr-childpages" rel="nofollow ugc">http://scottierocket.com/wordpress-stuff/sr-childpages</a>.

SR-ChildPages

This plugin allows page authors to easily list any child pages of a given page by simply using a new [childpages] shortcode.

XavinNydek

This plugin adds the ability to put a tag in your page entry and have it display a list of pages. By deafult it will 
show the subpages of the page that it is on, but it will accept any of the options the 
<a href="https://codex.wordpress.org/Template_Tags/wp_list_pages" rel="nofollow ugc"><code>wp_list_pages</code></a> template tag 
will except <code>title_li</code> and <code>echo</code>. It is very simple to use, just put <code>[xls]</code> in the entry for your page where you want the list to appear.
There is one option in addition to the <code>wp_list_pages</code> ones. Specifying a <code>css_class</code> will override the default of 
 xls_list for the class of the surrounding <code>ul</code>.
It supports multiple uses of the tag with different options on one page.
Here are a few examples of valid tags:
<pre><code>[xls depth=2]
</code></pre>
Shows two levels of the subpages of the current page.
<pre><code>[xls child_of=10 exclude="13, 15, 33"]
</code></pre>
Shows all children of the page with id 10, excluding pages 13, 15, and 33.
<pre><code>[xls child_of="0" show_date="modified"]
</code></pre>
Shows all pages, and shows the last modified date of each page.
Check the <a href="https://codex.wordpress.org/Template_Tags/wp_list_pages" rel="nofollow ugc"><code>wp_list_pages</code></a> documentation for all of the possible options.

Xavin's List Subpages

I know it hasn't been updated for some time but I have been using it for many years and currently running it on WordPress 4.3.1 without any issues.
Such a simple yet useful concept and this plugin does it well. Listing the sub pages of a page inside itself in a bullet list with a shortcode.



Still the best list subpages plugin

Adds a tag that you can use in your pages to display a list of it's subpages.

SR-ChildPages vs Xavin's List Subpages