Spanning generations, this list aims to compile all of the Nominees (and winners) from the inaugural 1953 presentation of The Hugo Award to the present. There are many exceptional books here that deserve just as much attention that are normally given to the winners.
Some notable omissions include the "Retro" awards that were held to nominate and award book in years where Hugo awards were not given.
Additionally, the entire Wheel of Time series by Robert Jordan/Brandon Sanderson is omitted as it is not a single book. The entire series was nominated as a single entry in 2014. I only omit it here for the sake of not confusing the individual books not being nominated in their release years (I personally consider it an incredible series and highly recommend reading it in its entirety if you can handle the investment.)
#4 of 7 in A Song of Ice and Fire
2005 • 1,639 Readers • 866 pages • 4
2005 • 217 Readers • 415 pages • 3.5
#1 of 1 in Strange & Norrell
2004 • 1,307 Readers • 865 pages • 4
2004 • 134 Readers • 434 pages • 3.7
2004 • 36 Readers • 452 pages • 3.9
2005 • 149 Readers • 16h 17m • 4.2
98 Readers • 3.7
2003 • 36 Readers • 406 pages • 3.9
2002 • 29 Readers • 576 pages • 3.7
2002 • 15 Readers • 3.7
2002 • 151 Readers • 3.5
#1 of 4 in World of the Five Gods (Publication)
2001 • 363 Readers • 4.2
2001 • 45 Readers • 608 pages • 3.6
2001 • 60 Readers • 324 pages • 4
#4 of 8 in Harry Potter
19 • 4,201 Readers • 752 pages • 4.4
#3 of 7 in A Song of Ice and Fire
2000 • 1,796 Readers • 992 pages • 4.5
2000 • 74 Readers • 338 pages • 3.6
15 Readers • 3.9
2000 • 71 Readers • 356 pages • 4
#12 of 16 in Vorkosigan Saga (Publication Order)
1999 • 86 Readers • 223 pages • 4.2
1999 • 734 Readers • 1,152 pages • 4.2
#3 of 8 in Harry Potter
8 • 4,359 Readers • 547 pages • 4.4
#2 of 4 in Oxford Time Travel
1990 • 285 Readers • 514 pages • 4.2
1998 • 32 Readers • 320 pages • 3.3
1998 • 24 Readers • 489 pages • 3.4
2012 • 18 Readers • 9h 39m • 4.1
10 Readers • 4.5
1997 • 15 Readers • 352 pages • 3.8
2016 • 6 Readers • 337 pages • 4
#10 of 16 in Vorkosigan Saga (Publication Order)
1996 • 26 Readers • 509 pages • 4.5
1996 • 84 Readers • 12h 18m • 4.4
1996 • 31 Readers • 4
14 Readers • 3.4
1995 • 501 Readers • 536 pages • 4
1995 • 49 Readers • 643 pages • 3.3
1995 • 29 Readers • 295 pages • 3.6
1994 • 16 Readers • 240 pages • 3.3
#8 of 16 in Vorkosigan Saga (Publication Order)
1994 • 93 Readers • 613 pages • 4.1
1994 • 12 Readers • 560 pages • 3.4
1994 • 11 Readers • 528 pages • 3
26 Readers • 3
151 Readers • 3.9
#1 of 4 in Oxford Time Travel
1992 • 450 Readers • 593 pages • 3.8
1751 • 113 Readers • 321 pages • 3.8
#7 of 16 in Vorkosigan Saga (Publication Order)
1991 • 150 Readers • 402 pages • 4.1
1991 • 16 Readers • 288 pages • 2.8
1991 • 36 Readers • 257 pages • 3.9
#6 of 16 in Vorkosigan Saga (Publication Order)
1990 • 113 Readers • 343 pages • 4
1990 • 1 Reader • 371 pages
#4 of 16 in Vorkosigan Saga (Publication Order)
1988 • 112 Readers • 3.8
1988 • 35 Readers • 396 pages • 3.4
#5 of 5 in The Book of the New Sun
1987 • 95 Readers • 310 pages • 4
11 Readers • 1.5
1997 • 78 Readers • 524 pages • 3.4