Aaron Paul has named his daughter Story.

The 'Breaking Bad' star and his wife Lauren welcomed a baby girl into the world last week and have decided to give her a unique moniker.

The birth certificate, obtained by The Blast, lists the baby's name as Story Annabelle Paul. Her last name Paul is actually Aaron's middle name, which he chose to adopt as his last name for his career.

Aaron and Lauren announced the baby's arrival in matching Instagram posts last week.

He captioned it: ''My heart.''

Whilst Lauren wrote below her own post: ''There are no words that will ever be able to explain what just happened to my heart.''

Ahead of the baby's arrival, the 38-year-old actor confessed he and Lauren were waiting until their baby was born before choosing a name.

He said: ''We have a few, a few names. If one of us didn't like one of the names it never made it into the pile. We have a handful of names and we're going to name her once we meet her ... I'm over the moon excited. I love babies, I've always loved babies. We just hang out in our nursery a lot. It's our favourite room of the house, and yeah, everything's ready.''

Aaron and Lauren announced they were expecting a baby in a sweet post on Instagram back in September.

Alongside a photo of Lauren holding her burgeoning baby bump, he wrote: ''Hey everyone. Look what I did. Words can't express how excited I am that this little one has entered our lives. Just thought it was time I would share this beautiful news with all of you.''