Former TOWIE star will be tying the knot with actress Michelle Keegan in the summer, and he kicked off his pre-celebrations on Saturday night (18 April).
Mark shared pictures from the night via Twitter showing fans that he really did party in style - just look at the size of that group!
He kicked off his evening with some food at The Three Colts village pub in Buckhurst Hill before ending the night at Faces nightclub.
Mark clearly had a good time, tweeting: "Omg I can't say a big enough thankyou to @FacesEssex tonight!! They have made my pre stag do the best ever!"
Mark is expected to have his actual stag do in Las Vegas, and it seems like BFF Arg is counting down the days.
We started off with this many !! pic.twitter.com/B5GNVcbjYw— Mark Wright (@MarkWright_) April 19, 2015
Posting a photo of himself with Mark, his brother Josh and dad Big Mark Wright, TOWIE star Arg said: "I love these guys so much! @BigMarkWright_ @MarkWright_ @Joshwright4 #VegasAintReadyForUs haha x."
The last ones standing !! pic.twitter.com/P4KgfYrdcY— Mark Wright (@MarkWright_) April 19, 2015
Ordinary Lies star Michelle already confirmed last month that she and Mark will be having multiple hen and stag dos in different locations. While Mark will be heading to Vegas, Michelle is thought to be heading to Dubai.
The couple got engaged in September 2013, and while they will marry in a ceremony in the UK, details of their nuptials are being kept under wraps.
Mark and Michelle's romance in less than a minute: