The Swedish striker completed a bright month in front of goal with three goals in two starts for the Magpies, resulting in a Premier League Player of the Month nomination.
Isak netted both goals in United's 2-1 comeback victory away at Forest last week, equalising on the stroke of half-time after hanging in the air to score a unique volleyed finish at the back post before later sealing maximum points for Eddie Howe's side with a cooly-taken 93rd minute penalty.
The 23-year-old also also opened the scoring in Newcastle's 2-1 victory against Wolverhampton Wanderers at St. James' Park, netting a delightful header in front of the Gallowgate End following Kieran Trippier's in-swinging free-kick.
The in-form forward features on an eight-man shortlist for March's prize, which includes the likes of Arsenal's Reiss Nelson, Cody Gakpo of Liverpool, Leicester City's Patson Daka, Chelsea duo Kai Havertz and Mateo Kovačić, Jack Harrison of Leeds United and Wolverhampton Wanderers' Jonny.
Supporters can now vote for the goal here, with voting closing at 12pm (BST) on Monday, 27th March.