Greengrass
Greengrass is a surname. Notable people with the surname include:

Jessie Greengrass (born 1982), British poet and author
Jim Greengrass (1927–2019), American professional baseball player
John Greengrass, New Zealand rugby league footballer 
Ken Greengrass (1926–2014), American music and television producer
Paul Greengrass (born 1955), English film director, screenwriter and former journalist

Fictional characters
Astoria Greengrass, character from J. K. Rowling's Harry Potter series
Claude Greengrass character from the British period police drama Heartbeat

See also 

 Barney Greengrass, restaurant on the Upper West Side of Manhattan