There are multiple characters named Emma in EastEnders:

• Emma Harding is the mother of Lola Pearce-Brown and grandmother of Lexi Pearce. She was also the ex-wife of Dan Pearce. Emma Harding appeared on the show from January to September 2023 and was portrayed by Patsy Kensit

• Emma Summerhayes is a police officer who was involved in investigating the murder of Lucy Beale. She first appeared in Walford as part of the police force

• Additionally, Emma Barton is an actress who plays the long-running character Honey Mitchell on EastEnders. She has portrayed Honey Mitchell since 2005, with some breaks, and is well known for this role

So, "Emma" could refer to either Emma Harding, Emma Summerhayes, or the actress Emma Barton who plays Honey Mitchell, depending on the context.