Entertainment
- Bantam Spectra, the science fiction/fantasy imprint of Bantam Books
- Sally Spectra, a fictional character on The Bold and the Beautiful
- Spectra (book), a 1916 American literary hoax
- Spectra (Selena Slate), a Marvel Comics character—see List of Marvel Comics characters
- Spectra Phantom, a character from the TV series Bakugan Battle Brawlers: New Vestroia—see List of Bakugan Battle Brawlers characters#Spectra Phantom/Keith Clay
- Spectra, the name of the enemy planet in the 1970s anime television series Battle of the Planets
- Spectra, the fine arts and design group of Indian Institute of Technology Kharagpur
- Spectra Vondergeist, a Monster High character
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