• Birthplace: Harlow, Essex, England, United Kingdom
• Age: 46
• Height: 163 cm
• Weight: 60 kg
• Website: N/A

Joanne Mary Joyner (born 24 May 1977) is an English actress. She is known for her roles as Tanya Branning in the BBC soap opera EastEnders and Mandy Carter in Channel 4 drama Ackley Bridge. Since 2018, she has starred as Luella Shakespeare in the BBC crime drama series Shakespeare & Hathaway: Private Investigators.

Joyner was born in Harlow, Essex to Anne (née McCormick) and Peter Joyner. She has one older brother, David. In 1999, she graduated from the Royal Welsh College of Music & Drama in Cardiff with a BA in Acting.

After a stint of guest roles in shows such as Always and Everyone, The Cops, Heartbeat and Clocking Off, Joyner came to prominence after playing Beth Nichols in Channel 4 comedy-drama No Angels between 2004 and 2006. She later appeared in four episodes of North & South as Fanny Thornton and in two episodes of Doctor Who as Lynda Moss. Whilst still appearing in EastEnders in 2011, Joyner appeared in BBC One comedy-drama Candy Cabs as Jackie O’Sullivan. The show received generally poor reviews from critics, with many complaining that the series appeared to be plagiarised from the 1963 British Carry On film Carry On Cabby. Following her eventual departure from EastEnders, she appeared in main roles in shows such as Trying Again in 2014, in BBC drama Ordinary Lies and The Interceptor. From 2015 to 2016, Joyner took on the lead role of the Vicar in two series of the sitcom Marley's Ghosts on Gold.

In June 2017, Joyner began portraying Mandy Carter in Channel 4’s drama Ackley Bridge. Joyner was praised for her portrayal of the role by viewers. She was deemed "sensational", "fantastic", and an "underrated actress", with someone adding that she "smashed it". She departed from the series in the fourth series in 2021. In February 2018, she started to play Luella Shakespeare, alongside Mark Benton, in the BBC One comedy-drama Shakespeare & Hathaway: Private Investigators.

In February 2021, it was announced that Joyner had been cast in the Netflix drama series Stay Close as Erin Cartwright.

In June 2006, Joyner began appearing as Tanya Branning in BBC One soap opera EastEnders. Joyner originally turned down the role on the show as she had doubts over whether she could work in a soap opera. She said "It was a massive decision. I said no originally. Playing someone in a soap is a big responsibility. People are very protective of the soap and if you are rubbish you can't get away from it." Also, having worked quietly and successfully in the industry for eight years, Joyner was unsure if she would be comfortable with the level of fame being on EastEnders would bring her. Joyner won the 'Most Popular Actress' award at the Digital Spy Soap Awards in 2008 for the part of Tanya and also went on to win 'Best Dramatic Performance' at the 2008 British Soap Awards and made the final four in the 'Best Actress' category. Joyner was nominated for the "best actress" award at the All About Soap Awards in 2012 and later won the award. In 2012, Joyner and co-star Jake Wood won the Best On-Screen Partnership category at the British Soap Awards. On Digital Spy's 2012 end of year reader poll, Joyner was nominated for "Best Female Soap Actor" and came fourth with 13.4% of the vote.

On 1 May 2012, it was reported that Joyner would take a prolonged break from the show at the end of her current contract, to spend time with her family, and an inside source stated that she "will definitely return". However, on 1 April 2013, it was announced that Joyner's departure would be indefinite as she wished to try new career paths. Speaking of this, Joyner said, "I love playing Tanya and being part of such a great show, but she has been on quite a rollercoaster over the past seven years and I have come to realise that it's right for her to step away from Walford for a bit longer than originally planned. I have been very fortunate to have been part of some fantastic storylines over the years, and I have worked with some wonderful people during my time on the show which I will always be very grateful for, but I feel that as a mother and an actress it is time for me to explore some other avenues for a while." Executive Producer Lorraine Newman stated that whilst Tanya will be missed, her exit will bring a new era to the Branning family but refused to say how Tanya will leave the show. Joyner filmed her final scenes on 15 May 2013. She departed the show on 28 June 2013. Joyner reprised the role of Tanya in EastEnders for the 30th anniversary specials in February 2015 and again on Christmas Day 2017 as part of the storyline surrounding the exits of her onscreen daughters.

Joyner announced in July 2009 that she was pregnant with twins as a result of IVF treatment. She gave birth to fraternal twins Freddie McCormick and Edie Rose Madden on 7 December 2009.