Norman Armstrong Senibici Ligairi (born 29 January 1976 in Nadi) is a Fijian former rugby union player who usually played as a fullback.

In 2001 he was capped five times for Fiji, and following further Tests in June 2002 he toured the northern hemisphere in November and played in matches against Wales, Ireland and Scotland.

Following games against Argentina and Chile, Ligairi was included in the Fiji squad for the 2003 Rugby World Cup which was hosted by Australia.

Ligairi was capped twice the following year, and went on to play for the Pacific Islanders in the matches against Australia and South Africa.

In 2006 he was a part of the Fiji sevens team which won bronze at the rugby event at the 2006 Commonwealth Games.