The only way I know, is by querying the group members by using the Restapi  or SOAP (Users and Groups Web Service )

As a result you get all members of the queried group.

But ensure that everyone (not only group members) are allowed to see the group members

regards Oliver

Hi,

I'm trying to get the same functionally. Trying to get list of users from SharePoint group on a nintex form . Let me know how can I achieve this. Much appreciated.

Srujan