The Spider was an American pulp magazine published by Popular Publications from 1933 to 1943. Every issue included a lead novel featuring The Spider, a heroic crime-fighter. The magazine was intended as a rival to Street & Smith's The Shadow and Standard Magazine's The Phantom Detective, which also featured crime-fighting heroes. The novels in the first two issues were written by R. T. M. Scott; thereafter every lead novel was credited to "Grant Stockbridge", a house name. Norvell Page, a prolific pulp author, wrote most of these; almost all the rest were written by Emile Tepperman and A. H. Bittner. The novel in the final issue was written by Prentice Winchell.

The Spider is an American pulp-magazine hero of the 1930s and 1940s. The character was created by publisher Harry Steeger and written by a variety of authors for 118 monthly issues of The Spider from 1933 to 1943. The Spider sold well during the 1930s, and copies are valued by modern pulp magazine collectors. Pulp magazine historian Ed Hulse has stated "Today, hero-pulp fans value The Spider more than any single-character magazine except for The Shadow and Doc Savage."