"Paranoid" la mot bai hat cua ban nhac heavy metal nguoi Anh Black Sabbath trich tu album thu hai Paranoid (1970) cua nhom. Đay la đia đon đau tien trich tu album, con đia mat B la bai "The Wizard". Ca khuc gianh hang 4 tren UK Singles Chart va vi tri so 61 tren Billboard Hot 100.


Thong tin bai hat "Paranoid" la đia đon đau tien ma Black Sabbath phat hanh, ra mat 6 thang ke tu ngay phat hanh album đau tay trung ten cua nhom. Tay bass cua Black Sabbath la Geezer Butler chia se voi tap chi Guitar World vao thang 3 nam 2004 nhu sau:

Rat nhieu bai trong album Paranoid đuoc sang tac trong khoang thoi gian chung toi lam album đau tien la Black Sabbath. Chung toi thu am toan bo trong khoang 2 hoac 3 ngay, truc tiep trong phong thu. Bai "Paranoid" la mot sang tac muon mang. Co ban thi chung toi can 3 phut đe lap đay not album, roi Tony nay ra khuc riff. Toi nhanh chong viet loi, va Ozzy vua đoc chung vua hat.

Bai hat la mot ngu cung not Mi va chi su dung chum not chinh la "hop am co ban/hop am 5". Khuc guitar solo la mot tin hieu tap am khong hieu ung o kenh ben trai, đuoc rap thong qua mach bien đien vong va chuyen qua kenh ben phai; hieu ung nay mot lan nua đuoc dung trong bai "Johnny Blade" Theo cac trang đoc ban nhac con sot lai, "Paranoid" tung co ten la "The Paranoid."
"Paranoid" sau cung tro thanh ten cua album va co mot đieu bat thuong la tu paranoid khong he xuat hien trong loi bai hat. Luc đau ban nhac muon đat ten album la War Pigs theo bai hat cung ten, nhung cong ty thu am đa thuyet phuc ho chon cai ten "Paranoid" boi no it phan cam hon. "Paranoid" đa gay ra tranh cai vi duong nhu co tinh co đong tu sat, giong nhu bai "Suicide Solution". Cu the, cau hat "Toi bao ban hay tan huong cuoc song" bi nghe lon thanh "Toi bao ban hay ket thuc cuoc đoi đi".


Di san "Paranoid" đuoc liet o vi tri so 34 trong danh sach 40 ca khuc nhac metal xuat sac nhat cua VH1. thang 3 nam 2005, tap chi Q xep bai hat o vi tri so 11 trong danh sach 100 bai hat bang guitar xuat sac nhat. To Rolling Stone thi liet ban nhac o hang 250 trong danh sach 500 bai hat hay nhat moi thoi đai. "Paranoid" đuoc an pham Rock - Das Gesamtwerk der großten Rock-Acts im Check cua Đuc ton vinh la bai hat hay thu 5 cua Black Sabbath.
Nhom nhac punk rock nguoi My the Dickies đa cover bai hat trong album đau tay the Incredible Shrinking Dickies (1979) cua nhom. Sau khi phat hanh đia đon, ban cover nay đat hang 45 tren UK Singles Chart. Ban nhac goc cua Black Sabbath tung đuoc su dung nhieu lan trong nhieu bo phim đien anh va chuong trinh truyen hinh nhu Sid & Nancy, Private Parts, Dazed and Confused, The Stoned Age, Any Given Sunday, Almost Famous, Slugs, We Are Marshall, Dark Shadows, Angry Birds, Biet đoi cam tu, Kong: Đao Đau lau va CHiPs. Bai hat con đuoc dung trong cac tro choi đien tu nhu Rock n' Roll Racing, Guitar Hero 3, Madden NFL 10, WWE 2K17 va Dave Mirra Freestyle BMX 2.
Bai hat đa đuoc cover boi nhom nhac industrial rock the Clay People trong album tuyen tap cua nhieu nghe si mang ten Shut Up Kitty, phat hanh vao nam 1993. Soft Cell đa the hien ban cover cua "Paranoid" trong nhung live show đau tien, truoc khi phat hanh album đau tay cua nhom; đia demo ban cover đuoc phat hanh trong album tuyen tap The Bedsit Tapes vao nam 2005. Mot phien ban cover nhac song bai hat cua Doctor and the Medics đuoc thu thanh đia 12" trong đia đon "Burn" cua nhom vao nam 1986. Skrewdriver cung cover ca khuc trong album "The Strong Survive" vao nam 1990. Ban nhac thrash metal Megadeth la nghe si cover ca khuc cho album tuyen tap tri an Black Sabbath mang ten Nativity in Black: A Tribute to Black Sabbath (1994). Ban cover con co mat trong đia EP Hidden Treasures ra mat vao nam 1995. Weezer cung cover bai hat trong album toan cac bai cover mang ten The Teal Album.
O Phan Lan, "Paranoid" đuoc xem trong tuong đuong bai "Free Bird" cua Lynyrd Skynyrd o My boi bai hat co the lam khan gia thay hai huoc khi đe nghi nghe si trinh dien trong mot buoi hoa nhac. Vi the du khan gia co yeu cau bat cu mot ban nhac hoac the loai nhac nao, mot nguoi se het len "Soittakaa 'Paranoid'!" ("Choi bai 'Paranoid' đi!") trong mot buoi dien. Nam 2003, voi viec "Changes" gianh ngoi quan quan UK Singles Chart, Ozzy Osbourne đa pha ky luc ve quang thoi gian dai nhat giua bai hat đau tien co mat tren UK Singles Chart ("Paranoid" đat hang 4) va bai hat đau tien đoat ngoi quan quan cua bang xep hang nay – len toi 33 nam.


Đoi hinh the hien Ozzy Osbourne – hat
Tony Iommi – guitar
Geezer Butler – bass
Bill Ward – trong


Ton vinh (*) chi nhung danh sach khong xep thu tu.


Danh sach bai hat 7" single (Vertigo 6059 010)
"Paranoid" – 2:45
"The Wizard" – 4:20
7" single (Vertigo 6059 014)
"Paranoid" – 2:50
"Rat Salad" – 2:30
7" singles (Vertigo AS 109)
"Paranoid" – 2:50
"Happy Being Me" – 15:54
7" tai phat hanh 1977 (Immediate 103 466)
"Paranoid" – 2:50
"Evil Woman" – 3:25
7" tai phat hanh 1977 (Nems SRS 510.044)
"Paranoid" – 2:50
"Tomorrow's Dream" – 3:11
7" tai phat hanh 1980 (Spiegelei INT 110.604)
"Paranoid" – 2:45
"Snowblind" – 5:25
Ghi chu
I^  "Happy Being Me" đuoc the hien boi Manfred Mann Chapter Three va xuat hien trong album phong thu thu hai Manfred Mann Chapter Three Volume Two cua nhom.


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