TalkSport reports that the Hammers are set to battle it out with Udinese and Lazio to sign the 22-year-old in January.
Boyd scored 17 goals for Austrian side Rapid Vienna last season.
The Germany-born striker joined Rapid Vienna from Bundesliga side Borussia Dortmund last year.
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Chelsea legend Didier Drogba has revealed his top 11 Chelsea career moments during his recent interview on Chelsea TV.
The start of the 2017-18 Premier League season is just around the corner and is shaping up to be one of the most competitive yet.