Advanced Posts/Page v1.0
Fine grained control of how many of your posts appear on each of the various WordPress archive pages.
Tags / posts-per-page
posts per page
7 WordPress plugins tagged “posts per page”. Every result links to a crawlable PlugIndex profile.
Powerful Posts Per Page (PPPP) v1.1.0
Posts per page for custom post types and taxonomies.
Custom Posts Per Page v1.7.1
Custom Posts Per Page provides a settings page in your WordPress admin that allows you to specify how many posts are displayed for different views.
Custom Posts Per Page Reloaded v2.0.1
Set how many posts are displayed per page for each view type — home, categories, tags, authors, archives, search, and custom post types.
Simple Custom Posts per Page v1.0
This plugin allows to configure the number of posts displayed for every custom post registered.
Admin Per Page Limits v1.1
Control the number of posts per page, pages per page, and comments per page that appear in the admin listings of posts, pages, and comments.
Posts Per Page Customizer v1.0.0
Powerful tool to tweak your existing loops. Set posts per page, filter posts, order them, hide them, apply Conditional Logic, etc.