How do I display the subtitle in my theme?

The intended way is with the the_subtitle() template tag as follows: if ( function_exists( 'the_subtitle' ) ) the_subtitle(); You can wrap the string in some markup using the $before and $after parameters. if ( function_exists( 'the_subtitle' ) ) the_subtitle( '', '' ); As an absolute worst case fallback you could also add the following snippet to your functions.php in order to prepend the subtitle to the content. /** * Prepend the subtitle to the post content. * * @param string $content The post content * @return string */ function kia_prepend_subtitle_to_content( $content ) { if ( ! is_admin() ) { $subtitle = function_exists( 'get_the_subtitle' ) ? get_the_subtitle() : ''; if ( ! empty( $subtitle ) ) { $content = '' . wp_kses_post( $subtitle ) . '' . $content; } } return $content; } add_filter( 'the_content', 'kia_prepend_subtitle_to_content' ); You could also filter the_title and but it would have to be part of the post title's markup and could not have it's own markup as nesting header elements is invalid HTML markup. /** * Append the subtitle to the title. * * @param string $title The post title * @return string */ function kia_append_subtitle_to_title( $title ) { if ( ! is_admin() ) { $subtitle = function_exists( 'get_the_subtitle' ) ? get_the_subtitle() : ''; if ( ! empty( $subtitle ) ) { $title .= ' — ' . wp_kses_post( $subtitle ); } } return $title; } add_filter( 'the_title', 'kia_append_subtitle_to_title' );

by HelgaTheViking 5 (18 reviews)

KIA Subtitle

Name: KIA Subtitle
Rating: 5.0 (18 reviews)
Author: HelgaTheViking

The KIA Subtitle plugin allows you to add a subtitle to your posts.

KIA Subtitle ranks #2,603 among WordPress.org plugins with 7,000+ active installations, a 5/5 rating from 18 reviews, and was last updated May 8, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Tested up to WP 7 (Current: 7.1)

v4.0.2 Current Version v4.0.2

Updated 4 months ago Last Update on 08 May, 2026

Refreshed 10 hours ago Last Refreshed on

Top 5% by installs Downloads -15.5% this week

View on WordPress.org

Rank

#2,603

-1 this week

Active Installs

7K+

-9.1%

KW Avg Position

0.5 worse

Downloads

63.1K

+9 today

Support Resolved

— No change

Rating

100%

Review 5 out of 5

5 (18 reviews)

Next Milestone 8K

Total Progress 67.7%

7K+ 8K+

106

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Need 323 more installs to reach 8K+

Rank Changes

Current #2,603

Change

Best #

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

5.0

18 reviews

Overall 100%

18 (100%)

0 (0%)

Security History

Source: WPVulnerability

1 known vulnerability on record · 1 in the last 24 months · checked 2 days ago

May 21, 2026

KIA Subtitle [kia-subtitle] < 4.0.2

CVE-2026-7509 · Fixed in v4.0.2

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Plugin Details

Version: 4.0.2
Last Updated: May 08, 2026
Requires WP: 6.1+
Tested Up To: 7
PHP Version: N/A
Author: HelgaTheViking

Support & Rating

Rating: ★ ★ ★ ★ ★ 5
Reviews: 18
Support Threads: 0
Resolved: 0%

Keywords

simple subtitle

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TL;DR

AI summary of the plugin's readme

KIA Subtitle is for WordPress site owners and theme developers who want to give posts, pages, and custom post types a subtitle. It solves the lack of native subtitle support by adding a subtitle field, editor block, template tags, and shortcode so themes can display it wherever needed.

Subtitle input field on posts/pages
Custom post type support
Subtitle column in edit screen
Quick edit subtitle support
Subtitle block for editor
[the-subtitle] shortcode
the_subtitle() and get_the_subtitle() template tags
WooCommerce bridge plugin support

Frequently Asked Questions

Common questions about KIA Subtitle

The intended way is with the the_subtitle() template tag as follows: if ( function_exists( 'the_subtitle' ) ) the_subtitle(); You can wrap the string in some markup using the $before and $after parameters. if ( function_exists( 'the_subtitle' ) ) the_subtitle( '<h2 class="subtitle">', '</h2>' ); As an absolute worst case fallback you could also add the following snippet to your functions.php in order to prepend the subtitle to the content. /** * Prepend the subtitle to the post content. * * @param string $content The post content * @return string */ function kia_prepend_subtitle_to_content( $content ) { if ( ! is_admin() ) { $subtitle = function_exists( 'get_the_subtitle' ) ? get_the_subtitle() : ''; if ( ! empty( $subtitle ) ) { $content = '<h2 class="subtitle">' . wp_kses_post( $subtitle ) . '</h2>' . $content; } } return $content; } add_filter( 'the_content', 'kia_prepend_subtitle_to_content' ); You could also filter the_title and but it would have to be part of the post title's markup and could not have it's own markup as nesting header elements is invalid HTML markup. /** * Append the subtitle to the title. * * @param string $title The post title * @return string */ function kia_append_subtitle_to_title( $title ) { if ( ! is_admin() ) { $subtitle = function_exists( 'get_the_subtitle' ) ? get_the_subtitle() : ''; if ( ! empty( $subtitle ) ) { $title .= ' — ' . wp_kses_post( $subtitle ); } } return $title; } add_filter( 'the_title', 'kia_append_subtitle_to_title' );

Unfortunately, I cannot tell you exactly what file to place the above code in because 1. I don't know where you want to display the subtitle and 2. every theme's structure is different. However, in general, the_subtitle() is a template tag so you will want to put it in a template file. Probably, you are looking for the file that contains your post loop. For most themes it's single.php ( or page.php for pages ), but for many it could also be content.php. Assuming you want the subtitle to display directly after your main title, you'd place the above code after: <h1 class="entry-title"><?php the_title(); ?></h1> As an example if you wanted to display the subtitle on standard single posts, in the Twenty Twenty theme you'd create a copy of the entry-header.php template in your child theme and modify it as shown in this gist

If you have wrapped the subtitle in an H2 tag with the class of subtitle like in the gist above, you can then style it any way you'd like. .subtitle { color: pink; }

Yes! You can use this bridge plugin to automatically display the subtitle in most WooCommerce locations.

function kia_add_subtitle_to_wp_title( $title ) { if ( is_single() && function_exists( 'get_the_subtitle' ) ) && $subtitle == get_the_subtitle( get_the_ID() ) ) { $title .= $subtitle; } } add_filter( 'wp_title', 'kia_add_subtitle_to_wp_title' );

WPML now supports KIA Subtitle!