The 30-year-old, capped twice by Scotland, has signed a contract with the Gorgie side running to 2023.
Mackay-Steven spent a year-and-a-half in America, where he made 39 appearances and helped New York to the MLS play-offs in his first season.
He won three Scottish titles and the League Cup with Celtic between 2015 and 2017, before moving to Aberdeen.
Other news - Focus
Other news
Saturday 09 Mar
Sunday 25 Feb
Saturday 24 Feb
- 13:35 One absent for New York City FC for the trip to Charlotte
- 13:29 New York City FC 2024 team numbers confirmed
Tuesday 02 Jan
Monday 25 Sep 2023
Sunday 24 Sep 2023
Sunday 17 Sep 2023
- 16:52 Three Keys of NYCFC 0-0 Red Bulls
- 16:23 NYCFC 0-0 Red Bulls, Cushing: "Incredible atmosphere at Yankee Stadium"
Friday 15 Sep 2023
Wednesday 13 Sep 2023
Wednesday 09 Aug 2023
- 01:20 The Knicks can sacrifice Immanuel Quickley for a star
- 00:01 Maxi Moralez: "I can't wait to be reunited with the fans"
Tuesday 08 Aug 2023
- 23:00 Maxi Moralez back to NYCFC: "I couldn’t be more excited"
- 22:03 David Lee: "Maxi will bring leadership and experience to our group"
- 22:00 OFFICIAL - Maxi Moralez Returns to New York City Football Club
Wednesday 02 Aug 2023
- 13:00 David Lee: "We're excited to integrate Fernandez into the team"
- 07:20 NYCFC Signs Argentinian Forward Julián Fernández
Thursday 20 Jul 2023
Tuesday 18 Jul 2023
- 15:30 Bernardeschi can leave Toronto: there is interest from an Italian club
- 14:30 Los Angeles Galaxy crazy offer to Hriving Lozano
- 13:42 CR7: "Saudi Pro League is much better than the MLS"
Monday 17 Jul 2023
- 18:44 NYCFC, failing season. The trend needs to be reversed
- 17:27 Birk Risa: "I'm happy to be here, I can't wait to get started"
- 15:39 OFFICIAL - NYCFC Signs Norwegian Defender Birk Risa
- 13:44 Taty Castellanos moves to Lazio
- 13:40 Inter Miami, Alba también se sumará al proyecto
Monday 03 Jul 2023
Saturday 01 Jul 2023
Thursday 29 Jun 2023
Wednesday 28 Jun 2023
- 23:36 OFFICIAL - Inter Miami, Gerardo Martino named new coach
- 22:58 Timothy Weah has landed in Turin, he will be a Juventus player
- 22:56 OFFICIAL - Kai Havertz is a new Arsenal player
- 15:30 Bayern Munich on Kane, there is an agreement on the contract but not the one with Tottenham
- 14:30 West Ham reject Arsenal's third offer for Rice. Manchester City are considering withdrawing from the auction
- 13:24 Mbappé at Real, the striker's mother-agent is the key: she will be the one to deal with PSG
Tuesday 27 Jun 2023
- 19:15 OFFICIAL - "Welcome to Finnesota". Center forward Pukki restarts from MLS
- 19:13 OFFICIAL - Mateo Kovacic leaves Chelsea and signs with Man City
- 18:30 AC Milan wants Pulisic. Berhalter advises the US midfielder
- 18:00 West Ham: 100 million not enough for Declan Rice, rejected offers from Arsenal and Man City
- 17:30 Timothy Weah moves to Italy
- 17:00 NYCFC may pursue former Vancouver Whitecaps player
- 16:30 Antoine Griezmann wants to play in MLS and rejects the offer from Saudi Arabia
- 15:59 Keaton Parks: "I'm happy to be able to do goal and assist"
- 15:32 Bayern Munich, formal offer for Harry Kane
- 15:23 Andrea Pirlo returns to Italy, signs with Sampdoria
Monday 26 Jun 2023
Sunday 25 Jun 2023
Saturday 24 Jun 2023
Tuesday 13 Jun 2023
- 13:28 Manchester City's Champions League win could impact NYCFC's future
- 12:00 James Sands Selected To Represent The USMNT At The 2023 Concacaf Gold Cup
- 08:30 Lionel Messi lands in the MLS: pros and cons
Sunday 11 Jun 2023
Saturday 10 Jun 2023
- 23:48 Real Salt Lake vs NYCFC: one player unavailable for Cushing
- 23:46 NYCFC, Cushing: “We’re Desperate For The First Road Win"
Wednesday 07 Jun 2023
- 22:34 MLS statement on Lionel Messi and Inter Miami CF
- 21:54 OFFICIAL - Messi is a new player of Inter Miami FC
- 19:09 Messi's signing with Inter Miami FC
Saturday 03 Jun 2023
