Wonder Woman is portrayed as a righteous woman, who seems to be pretty self-sufficient. After all, she is an Amazonian Warrior from Themyscira, but even the Gods cannot live long without a partner. In the case of Diana, she hasn't had a huge number of partners like Bruce Wayne but she has definitely felt love.
She is beautiful, smart, and a superhero. There aren't many people who would reject an opportunity to be in a relationship with Wonder Woman. Nevertheless, the world is full of surprises and for one reason or another, the DC superhero has denied or has been denied a relationship with other DC characters.
10 Steve Trevor
The most obvious one is Steve Trevor, whom Wonder Woman loved, unlike anyone. It is not a surprise, though, as Steve was literally the first man she ever met coming from a place full of women.
Diana likes everything about Steve; be it his humor or heroism. If there's anyone Wonder Woman would be willing to spend her whole life with, without a doubt, it would be Steve. But unfortunately, that cannot happen as Steve is a mere human being.
9 IO
Diana has lived with women her entire life and she has always suggested that she is quite open to dating women in the comics. There have been numerous teases when it comes to that and IO is one of those characters who just about managed to be in a relationship with Wonder Woman.
Although it wasn't full-fledged, it was never allowed to develop as IO found herself dead. It would've been a very good romantic angle, considering how well these two understood each other.
8 Keith Griggs
Keith Greggs is someone who wasn't really Wonder Woman's life but Diana definitely found him attractive. An Air Force pilot, Keith was a strong individual, and just like Wonder Woman, he knew how to handle himself in world-ending situations.
The relationship they had was always going to end, though, as at that time, Steve was going through something. As soon as he fixed up, Diana went back to her first ever love and it wasn't a surprise.
7 Nemesis
Nemesis is a name that usually pops up when the Suicide Squad is mentioned. A vigilante by nature, he is one of the very few who rejected Wonder Woman. He might be regretting it now but he should've thought about it when Diana confessed her love for him.
It was another dodgy call from Wonder Woman, to be honest, as she was quite emotional after the death of Trevor Barnes, who is another one of her lovers.
6 Kasia
Numerous little things have hinted at a relationship between Kasia and Wonder Woman. Before Steve Trevor showed up at Themyscira to take Diana away, Kasia could be seen sharing an emotional moment, almost begging Wonder Woman to not leave.
Whenever they talk to each other, it looks like they are romantically involved. At one point, even the Amazonian Warriors in Themyscira seemed to suggest it. Kasia could very soon be introduced in the DCEU.
5 Mike Bailey
This Mike Bailey guy had the guts to try and play with Wonder Woman. Diana was dealing with the heartbreak of Steve dying at the time and she decided to join NASA in the memory of her loved one. There, she met Mike and fell in love.
Mayne Mike liked her too but in the end, he was only manipulating her as he was a part of an evil gang. Quite expectedly, the relationship ended in a brawl and it was a lesson to those who thought of seducing Wonder Woman as a course of action.
4 Trevor Barnes
Trevor Barnes is someone who entered a world he knew nothing about. A human rights activist for the United Nations, Trevor was a very simple man until he met Wonder Woman and fell in love. Both of them did, in fact, and maybe Diana saw a bit of Steve in Trevor.
Despite being loved by Wonder Woman, Trevor always felt insecure and inferior. Their relationship ended in the worst way imaginable. A creature called the Shattered God possessed Barnes and in order to save the world, Zeus had to kill him.
3 Batman
Bruce Wayne and Diana have been brilliant friends for a very long time. They have always had chemistry; it was all about when both of them considered dating each other.
In the Justice League animated series, things were taken up a notch as a romantic angle between Batman and Wonder Woman finally came to fruition. In the comics world, though, a lot of teases have been made, without any fire. Maybe the DCEU will try and probe a bit.
2 Superman
Superman and Wonder Woman might just be the most powerful relationship in superhero comics history. Here are two characters who have shaped the DC Universe and for them to be together in a relationship is kind of a big deal.
Many fans didn't like the idea of two god-like beings living with each other but it's safe to say that the partnership grew on people. In some alternate worlds, these two have married and have had kids with each other.
1 Aquaman
Aquaman is such a random name in the list of Wonder Woman's romantic interests but not surprising. At the end of the day, both of them belong to families with a royal background. One is the King of Atlantis, while the other is one of the best warriors from Themyscira.
Wonder Woman and Aquaman is a relationship showcased in the alternate worlds of the DC Universe, as well as the main continuity. The Flashpoint storyline comes to mind.