I am running 4.7.8 on Wordpress and cannot find the Contact Dashboard. I see Dashboard for Contributions, Events and Mailings but not under Contacts.
Another solution that gives you an instant 'let's see our Contacts is to just click in the QuickSearch (top left - white box) and hit Enter.
In that single click you get the 'Advanced Search' outcome of 'see all contacts' in A-Z order. If you create a Profile that has fields in that you would prefer instead of what is shown as default, you can then set this as your your default view in Admin > Customise > Search Preferences ie at civicrm/admin/setting/search?reset=1