Shellback may refer to:
*
Shellback (record producer)
Karl Johan Schuster (; born 1 February 1985), known professionally as Shellback, is a Swedish record producer and songwriter. He was listed as the No. 1 producer of 2012 on '' Billboard'' magazine's year end chart, and he also topped the list of ...
, from Karlshamn, Sweden
*
Shellback Wilderness, White Pine County, Nevada, U.S., wilderness area
*
Shellback Island, Victoria, Australia
*a sailor who has participated in a
line-crossing ceremony
The line-crossing ceremony is an initiation rite in some English-speaking countries that commemorates a person's first crossing of the equator. The tradition may have originated with ceremonies when passing headlands, and become a "folly" sanc ...
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