Any suggestions for good dystopian novels?

For young adult fare, similar to what you've already read:

Enclave by Ann Aguirre

Under the Never Sky by Veronica Rossi

XVI by Julia Carr

Birthmarked by Caragh O'Brien

The Secret Under My Skin by Janet McNaughton

Mortal Engines by Phillip Reeve

The Knife of Never Letting Go by Patrick Ness

The Way We Fall by Megan Crewe

For something more adult:

Battle Royale by Koushun Takami

1984 by George Orwell

The Chrysalids by John Wyndham

Brave New World by Aldous Huxley

The Road by Cormac McCarthy

A Clockwork Orange.

You have a nice list. Blood Red Road was a surprisingly good, and the Giver was the story that started the entire genre for teens. Here are a few in the same genre that you didn't mention.

The Shore of Monsters by David J. Nix – 2011. Five generations earlier, a horde of monsters nearly obliterated humanity. All males are dead or ruined by a monster plague; words like 'father' and 'romance' have lost meaning. When teenager Sky joins an expedition to the shore that falls apart, she must survive amongst the monsters that roam the ruins. She gets unexpected help from a very surprising source. Mystery, action, and romance follow!

Enclave by Ann Aguirre – 2011. In a shattered, post-apocalyptic world, 15-year old Deuce’s dream has come true. She has been named a Huntress, trusted by her community to brave the world outside of the sheltering tunnels and the threat of monstrous Freaks to bring meet to the tribe. The assignment is complicated by her pairing with the rebellious and handsome Fade, and a realization that the Freaks are growing more organized and cunning. Deuce and Fade must convince the tribal Elders of the imminent danger before it is too late.

The Forest of Hands and Teeth by Carrie Ryan – 2010. Seven generations have passed since the Return, a plague that reanimates dead humans into creatures that feed on the living. Teenager Mary lives inside one of the last enclaves of uninfected, protected by a chain link fence that surrounds her village. When the fence is breached, Mary flees the village with a small band of survivors. Their flight toward an uncertain salvation is both harrowing and revealing, as they try to determine if they are humanity’s last hope.

Incarceron by Catherine Fisher – 2007. Incarceron is a prison so vast that it is self-sustaining. Generations of prisoners are born inside, doomed to a life in prison. The novel weaves two story lines: that of 17-year old Finn, who hopes to become only the second person to break out of the prison, and Claudia, the warden's daughter who hopes to escape an arranged marriage. When each discovers a crystal key, they find that they can communicate through the devices, and pledge to help one another. The story lines merge in a fantastic twist you won’t see coming.

Maze Runner by James Dashner - 2009. When Thomas arrives in the Glade, he remembers nothing but his name, just like the dozens of other teen boys who arrived before him. The Glade, which is surrounded by an impenetrable maze, is closed at night to guard against the creatures that roam the darkness, but open for exploration during the day. Getting caught outside at night is certain death. As the boys try to unravel the mystery of their existence, a complication occurs: the first girl arrives in the Glade. More importantly, she has a connection with Thomas and a message that may determine the fate of all the Glade's inhabitants.

Shipbreaker by Paolo Bacigalupi – 2010. In a near future of rising seas, no oil, and extreme poverty, a teenager works as a shipbreaker - one who salvages rusting ships for parts. When he finds a wrecked super-yacht after a storm, he thinks his days of poverty are over. However, he gets swept into an adventure when bad people come for the one survivor of the wreck - a rich, beautiful girl who owns the vessel.

The Uglies Trilogy by Scott Westerfield – 2005. In a future society, a mandatory operation at age 16 wipes out physical differences, turning "Uglies" into "Pretties". The Pretties are allowed freedom to play, while the Uglies jealously await their turn. Ugly Tally has gotten into trouble that may forfeit her operation. The menacing government offers her a way out: find a group of rebel Uglies, infiltrate, and betray them. Tally agrees, but upon finding the rebels comes to understand the terrible price of becoming pretty.

Unwind by Neal Shusterman - 2009. In post-war future, the abortion debate has been solved through compromise. Parents may elect to have their teenage children "unwound", a process where the teens organs and body parts are harvested for others. The story follows three runaway Unwinds, each discarded for behavior, religious, or economic reasons. As the trio embarks on a harrowing journey of escape, the reader will ponder very heavy moral questions, and wrestle with how much a bad decision can affect future generations. This is a masterpiece on every level!

A clockwork orange

Unwind by Neal Shusterman. It's interesting and takes place in a near future.

Dune series incorporates a dystopian universe more or less.

Try "Electronic Gags." It's available on Kindle.