The unknown female, dressed in a black, white and red fur coat, was seen walking around with a suitcase but did not speak to anyone.
She arrived at the Dingles’ farm and hid in the barn as Zak (played by Steve Halliwell) and Lisa (Jane Cox) came out of the house.
However, Zak then locked the barn while the woman was hiding behind a hay bale, leaving her trapped inside.
Those watching at home were confused as to who the woman was and why she was at the Dingle residence.
Emmerdale fans asked who the mystery woman was
Emmerdale: The unknown female did not speak to anyone in the episode
“Who is that woman trapped in the barn? #Emmerdale,” one viewer asked.
While another said: “Who's the random in the barn at Zack and Lisa's #emmerdale @itvemmerdale?”
But many Emmerdale fans have decided she was Faith Dingle, the long-lost mother of Chas (Lucy Pargeter) and Cain (Jeff Hordley).
One social media user said: “Obviously It's Faith Dingle #emmerdale.”
Emmerdale viewers suggested the woman was Cain and Chas' mother, Faith Dingle
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Emmerdale: The woman was accidentally locked in the Dingles' barn
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“Woman In Barn. It's got to be Faith Dingle right? #Emmerdale,” someone else added.
A third guessed: “That's got to be faith dingle?! Spitting image of Chas #emmerdale @emmerdale.”
The identity of the woman is set to be revealed later this week when she stays at the B&B.
Emmerdale continues tomorrow night at 7pm on ITV.