I collected eight lists of the Best Country Music Albums of All Time from various sources on the Internet and combined  them into one meta-list.  Here are the results: every album on two or more of the original lists.  For a list of the Best Country Songs of All Time, go here.

On 7 lists
Johnny Cash – At Folsom Prison (1968)

5 lists 
Willie Nelson – Red Headed Stranger (1975)
Loretta Lynn – Van Lear Rose (2004)

4
Ray Charles – Modern Sounds in Country and Western Music (1962)
Tammy Wynette – Stand By Your Man (1969)
The Nitty Gritty Dirt Band – Will the Circle Be Unbroken (1972)
Dolly Parton, Linda Ronstadt & Emmylou Harris – Trio (1977)
Johnny Paycheck – Take This Job and Shove It (1977)

3
Marty Robbins – Gunfighter Ballads and Trail Songs (1959)
Buck Owens and His Buckaroos – Carnegie Hall Concert (1966)
Kris Kristofferson – Kristofferson (1970)
Dolly Parton – Coat of Many Colors (1971)
Waylon Jennings – Honky Tonk Heroes (1973)
Guy Clark – Old No. 1 (1975)
Kenny Rogers – The Gambler (1978)
Steve Earle – Guitar Town (1986)
Randy Travis – Storms of Life (1986)
Dwight Yoakum – Guitars, Cadillacs, Etc., Etc. (1986)
Garth Brooks – No Fences (1990)
Garth Brooks – Ropin’ the Wind (1991)
Johnny Cash – American Recordings (1994)
Shania Twain – Come On Over (1997)
Miranda Lambert – Revolution (2009)

2
Hank Snow – The Southern Cannonball (1961)
Glen Campbell – Wichita Lineman (1968)
The Byrds – Sweetheart of the Rodeo (1968)
Tammy Wynette – D-I-V-O-R-C-E (1968)
Merle Haggard – Mama Tried (1968)
Merle Haggard – Okie From Muskogee (1969)
Bob Dylan – Nashville Skyline (1969)
The Grateful Dead – Workingman’s Dead (1970)
The Grateful Dead – American Beauty (1970)
Loretta Lynn – Coal Miner’s Daughter (1970)
Bill Monroe – Bean Blossom (1973)
Gram Parsons – Grievous Angel (1974)
Bob Wills – For The Last Time (1974)
Emmylou Harris – Elite Hotel (1975)
Waylon Jennings – Dreamin’ My Dreams (1975)
Waylon Jennings & Willie Nelson – Waylon & Willie (1978)
Hank Williams – 40 Greatest Hits (1978)
Hank Williams Jr. – Whiskey Bent and Hell Bound (1979)
George Jones – I Am What I Am (1980)
Rosanne Cash – Seven Year Ache (1981)
Alabama – Mountain Music (1982)
Waylon Jennings, Willie Nelson, Johnny Cash, Kris Kristofferson – The Highwaymen (1985)
Dwight Yoakum – Buenas Noches from a Lonely Room (1988)
Randy Travis – Old 8 X 10 (1988)
Clint Black – Killin’ Time (1989)
Alan Jackson – A Lot About Livin’ (And A Little ’bout Love) (1992)
Emmylou Harris – Wrecking Ball (1995)
Shania Twain – The Woman In Me (1995)
Leann Rimes – Blue (1996)
Ween – 12 Golden Country Classics (1996)
Lucinda Williams – Car Wheels on a Gravel Road (1998)
Dixie Chicks – Wide Open Spaces (1998)
Dixie Chicks – Home (2002)
Patsy Cline – The Definitive Collection (2004)
Miranda Lambert – Crazy Ex-Girlfriend (2007)
Jamey Johnson – That Lonesome Song (2008)
Brad Paisley – American Saturday Night (2009)