The ginger family, Zingiberaceae, is the largest family in Zingiberales with 53 genera and over 1377 species (Kong et al. 2010). With about 150–180 species Amomum Roxb. is the second largest genus after Alpinia Roxb. It is widely distributed in tropical Asia (Xia et al. 2004). In India, the members of the genus are mainly restricted to Northeast India, Southern Peninsular India and Andaman and Nicobar Islands (Thomas & Sabu 2012) and about 22 species are known from the country (Thomas et al. 2010). Recent explorations throughout India for a revision of Indian Amomum have highlighted some additions to the Indian flora (Thomas et al. 2009a; Thomas et al. 2009b; Thomas et al. 2010; Thomas et al. 2012a; Thomas et al. 2012b; Thomas & Sabu 2012; Thomas et al.; 2013a; Thomas et al. 2013b). During recent field studies in Sikkim we encountered an unknown species at Pangthang, ICAR field station and this matched a historical collection by Prain in CAL, labelled “Rungbu, Sikkim Himalaya, May 1903” which had already been flagged up as something special. There are no previous reports regarding the occurrence of similar taxa in the works of Kumar (2001), Smith (1994), Press et al.(2000) and Delin & Larsen (2000) from Sikkim Himalaya, Bhutan, Nepal and China respectively. On critical examination we believe it to be a new species and it is hereby described and illustrated.