Olympic heptathlon champion Jessica Ennis-Hill will make her competitive comeback at the Hypo Meeting in Gotzis, Austria on May 30 to 31.
The 28-year-old has not taken part in a multi-event since winning gold at the London 2012 Olympics due to injuries and the birth of her first child Reggie last July.
It has been confirmed that Ennis-Hill will compete at the event, which she won three consecutive times from 2010, alongside fellow Brit and reigning champion Katarina Johnson-Thompson.
Seventeen-year-old Morgan Lake, who is a double world junior champion, is also expected to compete.