Nico Robin is the daughter of Nico Olvia and an unnamed husband. The two were both well-respected archaeologists, before their lives tragically ended early at the hands of the World Government. Robin has always had a great sense of curiosity and this led her to seek knowledge, even in her earliest years.
This led her to be acknowledged as Ohara's youngest ever Archaeologist, something she and her fellow Oharan scholars were immensely proud of. Afer Ohara's demise, Robin lived a life on the run, a hellish life, until she came across her ray of light, Monkey D Luffy and the Straw Hat Pirates.
10 JEWELRY BONNEY (CAN'T)
Bonney is the captain of the Bonney Pirates and a current member of the Worst Generation. Bonney was deemed one of the most dangerous rookie pirates, having arrived at Sabaody Archipelago two years ago, at the same time as a number of dangerous rookies. Since then, Bonnie has been captured by both Blackbeard and Akainu, but as since escaped and is on the loose to this day. She was last spotted in Mary Geoise, where she seemed disturbed by Bartholomew Kuma's current predicament. Bonney's devil fruit power can alter people's ages on contact, meaning she would be a bad match up for Robin who likes to make use of grapple moves.
9 CHARLOTTE BRULEE (CAN)
Brulee is the eighth daughter of the Emperor of the Sea, Big Mom. After consuming the Mirror-Mirror fruit, Brulee became a mirror human, with the ability to create and manipulate mirrors. The mirrors she generates reflect attacks and transport herself, and others, to her mirror world. These abilities are what has made Brulee a great asset to Totto Land and Big Mom, despite her relatively low combat ability. This low combat ability means that Robin would have little trouble in defeating Brulee.
8 BOA MARIGOLD (CAN'T)
Boa Marigold is one of the Kuja Pirate's most powerful fighters, having undergone years of strenuous training. This training was focused both on her Haki and devil fruit powers, which greatly expedited her rise in the pirate world. With this power, Marigold helped Boa become a powerful pirate and the Kuja used that power to become Warlords in order to protect Amazon Lily. Robin is a strong fighter, but Marigold's Haki would present an interesting obstacle, that she might not yet be strong enough to overcome.
7 BELL-MERE (CAN)
Bell-Mere was a marine that resided in Cocoyashi Village, where she raised her adopted daughters, Nami and Nojiko. Bell-Mere was loved and highly admired by the villagers. She was also regarded as a strong marine back when she was introduced in the story. However, since then, we've seen many characters that surpass her in strength, and Robin is one of those people. With her devil fruit powers, she could easily overwhelm Bell-Mere before landing the finishing blow.
6 BOA SANDERSONIA (CAN'T)
Boa Sandersonia is a skilled warrior from the Kuja Pirates, currently operating under the direct command of her sister, Boa Hancock, the Empress of Amazon Lily. After escaping from the Celestial Dragons, Sandersonia helped her sisters rise to infamy and became widely known as the Gorgon Sister. This saw her go through numerous life or death situations which allowed her Haki to bloom. This Haki makes Sandersonia a very difficult opponent, even for seasoned fighters (as Luffy found out during the Amazon Lily arc). This, in conjunction with her Snake-Snake fruit model, Anaconda, means that Robin would most likely lose if she faces Sandersonia one on one.
5 MARGUERITE (CAN)
Marguerite is a warrior in the Kuja Tribe. She was introduced during the Amazon Lily arc and was one of the first members of the Kuja Pirates, who would later go on to become friends of Luffy. Like many of Amazon Lily's warriors, she's adept at using Armament Haki, often imbuing it in her bow before shooting at her opponents. This gives her attack added power and strength that can easily destroy boulders. This would aid her greatly in fighting Robin but, ultimately, Robin would be able to defeat her due to her intellect and strategy.
4 CATARINA DEVON (CAN'T)
"Crescent Moon Hunter" is one of the strongest women in One Piece and, after escaping Impel Down with Blackbeard, she plans on turning the world on it's head. With her power and Blackbeard's help, the world could come to tremble at the feet of Marshall D Teach and his titanic captains. Devon is known for going around and decapitating the heads of beautiful women, which makes her a great danger to Robin. If the two were to go head to head Catarina would be able to overpower Robin and, in One Piece, power often plays a major role in the conclusion of fights.
3 NAMI (CAN)
Nami has come along way in the One Piece story. She started out as a simple cat burglar, who mainly survived using diversionary tactics. She survived through countless battles, gaining experience, and she has used these experiences to make herself even stronger. It is common for Nami to be given an upgraded weapon after she gets into a fight, which usually provides her with a massive power boost. This has recently seen her aquire the powerful Homi, Zeus. Zeus would make a battle between Nami and Robin interesting, as receiving a blow from Zeus could knock Robin out easily. Despite that, Robin would probably win the fight due to the her fighting style. With her powers, she could easily disarm Nami, thus preventing her use of Zeus, rendering her offense practically useless.
2 CHARLOTTE SMOOTHIE (CAN'T)
Charlotte Smoothie is one of Charlotte Linlin's Sweet Commanders and the current Minister of Juice. Throughout Totto Land and much of the New World, she's regarded with much respect due to her immense fighting abilities. Smoothie consumed the Wring-Wring fruit and this gave her the ability to wring the liquid out of both living and non-living things. With this power, Smoothie defeated many enemies and amassed a bounty close to a billion berries. This frightening power means that she could easily defeat Nico Robin if the two were to do battle.
1 NEFERTARI VIVI (CAN)
Nefertari Vivi is the princess of the Alabasta Kingdom, a kingdom with a long history, timing back towards the void century. Robin and Vivi were both apart of Baroque Works and, leading up to the Alabasta arc, they even had a couple of skirmishes. In these small battles, Robin cleverly used her devil fruit to defeat Vivi. Since that time, Vivi has focused on rebuilding her country but Robin has continued t0 push herself in the New World.