In Save the Enemy, Zoey's libertarian dad read The Giving Tree to her when she was four. He called it "evil" because it "promotes the immoral destruction of the self."
In Friday Night Lights, Landry feels Tyra is taking advantage of him and not considering his feelings, and gives a rant comparing himself to the Giving Tree and her to the boy.
In "The Savior", the first episode of the sixth season of Once Upon a Time, when Jafar taunts Aladdin with the fate of Saviors, his words are a paraphrase of the fate of the Giving Tree: "...you give, and give, and give, and for what? They pick the fruit, they cut the branches...and in the end all that's left is this shaky stump."
One Zits Sunday strip tells the entire story without words, with teen protagonist Jeremy as The Boy and Mom Connie as the Giving Tree. When the tree has become but a stump, Jeremy sits upon it, with the narrator stating that "the tree was happy...ish" and Connie thinking bitterly to herself that she can't wait until [Jeremy] has kids of his own.
Bob's Burgers: In "Interview with a Pop-Pop-Pire", each of the Belchers tell their version of what happened to Bob's father when a tree almost fell on him. Linda's version is a parody of The Giving Tree with her as the tree, who gets tired of Bob Sr. taking from her and just falls on him.
Robot Chicken: A sketch from "But Not in That Way" has the tree (voiced by Hulk Hogan) getting back at his friend by directing him to another tree, who turns out to be a rapingtree.