The short answer is no, Multisite uses the domain name to determine which site you are on, so there is no way to set up a Multisite site in a subfolder.
Having said that, depending on what you want to achieve there’s often ways around it.
For example, if you were ok with using a separate WordPress installation for the subfolder site, you could create the subfolder manually, set up WordPress in it, and there you have it – alongside your main Multisite install in the root. Of course, this could get messy if you have a lot of these subsites, and again, it really depends on your goals.
In the end, anything is possible with enough time and resources, but from the information you’ve provided so far it sounds like it’s not easily possible with the default way Multisite works.
Related Posts:
- Multisite on Windows with wildcard subdomains
- Are nested subdomains possible with a subdomain multisite?
- Can a multisite’s blogs be accessible from two different sub-domains?
- WP Multisite development with Mamp Pro and wildcard subdomains, not really working for me
- How to use alias domain for multisite installation?
- SSL wildcard issue for wp multisite subdomains
- What is the best way to load the WP environment in a subdomain of my multisite WordPress install?
- Wildcard subdomain for the same site
- Benefits or Problems for using Sub-Directory vs Sub-Domain install of WP Network
- Create multiple subdomains for multi-site from a database
- WordPress Multisite. Can domain be used instead of subdomain?
- Multisite: differences between subdomain and subdirectory mode? Can it be switch after installation?
- How to set up WordPress Multisite on multiple domains without plugin?
- NGinx + WordPress Subdomain Multi with core in Subdirectory
- Set subdomains live in a next step
- Transfer Subdomain site to Multisite setup
- Multisite installation combining subdomains and subdirectories
- How does wordpress multisite manage subdomains?
- Why can’t a WordPress network (multisite) in it’s own folder use subdomains?
- Multisite wordpress and subdomain URL collisions
- “Preview Changes” button doesn’t show changes for previously published posts/pages
- Subdomain multisite gives 404 on sub sites
- Add New Sub Site from the WordPress back end then in sub site options table option_value must be with https
- Testing Multisites with vagrant or Can I use multisite with only an IP address (without domain name)
- Changing Multisite URL after the subsite has been in use
- How do I use different domain for subdomains in WP Multisite?
- Non-wordpress subdomains on Multisite Installation
- Sub-subdomain getting redirected to main domain
- Possible to create a multisite network where the main site is non-WP?
- On WordPress Network(multisite), Sub Blogs in Subdirectories or Subdomains? What’s better?
- How do I maintain static directories on multisite subdomains?
- Multisite Subdomain Using More Resources Than Others?
- Changing admin sub-domain in WordPress multisite
- Subdomain login problems
- Change multi-site installation from sub-domains to sub-directories
- How can I have multiple URLs pointing to single WordPress installation?
- Not able to access dashboard of subdomain
- Wordrpess Subdomains (Multi-Site) without Wildcard
- How to Redirect login User with Mapped Domiain Primary blog Url to Original Sub-site Url
- Can I use two different domain names with a WordPress multisite network?
- WP MU – Accessing ‘Domain-Mapped’ WP-Admin with a subdomain
- Multisite setup on IIS with subdomains
- Icon font not working on subdomains of multisite
- WP Multisite – domain mapping to domain.com and separate site to domain.com/help
- Login on Multiple Sub-Domains without Multisite
- How to run a subdirectory multisite install under a subdomain
- Child Site doesn’t appear in the Network menu
- WordPress Multisite/Network – How to use a subdomain as main blog and subdomain for child sites
- WPMU Development Environment
- turn single domain off
- Redirect subdomain in Multisite installation?
- problem with main site (root domain) redirects to subdomain (multisite)
- Enable wildcard in a WordPress Multisite (Sub-Domains)
- Multiple wordpress installations that shares WordPress & Theme but with separated database
- How to redirect one page on the subdomain
- WordPress Multisite Wildcard Subdomains on Plesk
- Making 2 WordPress sites mutually searchable and more
- Start with multi-site feature now or later?
- WordPress Multisite Question
- Multisite – 404 when accessing sub-sites
- Migrating wordpress multisite and domain mapping plugin
- Unable to apply theme to WordPress Network Site install
- Create subdomain out of sight the wp multisite
- multisite subdomain behind reverse proxy
- Nginx Wildcard SSL with WordPress Multisite Subdomains
- Is the Multi site functionality a viable option for Country and Language targeting?
- Multisite not using subdomains as hostname in from address when sending emails
- Multisite – Looking for ideas to best manage a main site change
- ERR_TOO_MANY_REDIRECTS when i config my subdomains
- get post id by $content (so by post content)
- Multisite Subdirectory with same domain subdomain
- My subdomain on WordPress Multisite has gone
- WordPress Multisite blogs not working after domain swap
- Multisite, Subdomain, shared NFS directory Linux HELP
- Redirect to localhost after installing Multisite on server
- Login problems on multisite installation with different domains
- One Domain, Two Installs of WordPress
- MU/Subdomains + Domain Mapping + SSL?
- Multisite install w/ Sub domains on a subdomain
- Set up Network Locally on a Flash Drive
- How to show only blog-domain instead of the whole permalink in the loop
- When creating a multisite, the sub-folders option is not available
- Multisite – getting a 404 for additional site created using subdomain install
- WordPress MU subdomain vhost
- wp_get_attachment_image_src on multisite
- WordPress in subdirectory, Multisite using subdomains Nginx
- Install multisite wordpress on a subdomain and map to top level domains
- Creating a subdomain network in a subdomain
- How to query blogs posts of WordPress sub domain?
- Programmatically creating site in a network
- WordPress Multisites or Multiple WP Single sites?
- Https and Http Login Issue on WordPress Multisite
- Migrate single site to Multisites with plugins, cPanel and already working subdomains
- How to use different domains subdomains in WP multisite? [duplicate]
- Multisite on single wordpress
- Should i install multiple wordpress for one site?
- WordPress Multisite with subdomains on different domains
- Can’t create a subdomain network – and WP is installed in webroot, not a folder
- Installing other applications alongside WordPress multisite and configuring dns routing
- Using Same User Database on Subdomain