Seremaia Baïkeinuku (born 4 January 1979) is a retired Fijian rugby union player who played most recently for Leicester Tigers in the Aviva Premiership, and represented Fiji at a National level.

He previously played for Castres Olympique and ASM Clermont Auvergne who both compete in France's Top 14 competition.

In 2002 he joined Southland for the National Provincial Championship, and went on tour with Fiji for the November Test series in the northern hemisphere.

In 2006 he captained the Tailevu Knights for the 2006 Colonial Cup, and then signed with Clermont Auvergne in France.

He went on to play a substantial part of Fiji's quarter-final reaching team at the 2007 Rugby World Cup.