CmdID / aws / aws organizations
aws organizations create-organizational-unit
Creates an organizational unit (OU) within a root or parent OU. AWS CLI reference
3 options Its page in the AWS CLI reference
Options
--nameThe friendly name to assign to the new OU.--parent-idID for the parent root or OU that you want to create the new OU in.--tagsA list of tags that you want to attach to the newly created OU.