Cristiano Zanin

Cristiano Zanin Martins is a Brazilian jurist and law professor who has served as a justice of the Supreme Federal Court of Brazil since 2023. He is one of eleven justices on the court and also sits as a substitute minister at the Superior Electoral Court, a role to which he was elected for a second term in 2026.

His public profile is unusual for a sitting judge. Before joining the bench he spent years as the personal attorney of President Luiz Inácio Lula da Silva during the Operation Car Wash prosecutions, a role that made him a fixture in Brazilian political news and a lightning rod for both support and criticism. His 2023 confirmation vote in the Senate was 58 to 18.

In 2026 he became central to the administration of the presidential runoff, issuing a nationwide order that extended voting by two hours and handling a string of electoral disputes. He writes and teaches on civil procedure and arbitration, and he has co-authored a book on lawfare, the use of legal proceedings as political weapons. [edit]

Zanin was born on November 15, 1975, in Piracicaba, a mid-sized city in the interior of São Paulo state. The official STF and TSE biographies confirm the date and place but say little about his childhood or family background, and the public record offers no detail on his secondary schooling.

What is documented is a steady, technical climb through the law. He trained as a lawyer and built a private practice in São Paulo while also teaching law, specializing in civil procedure and arbitration. His academic writing in those fields shaped the way he later argued in court, and he co-authored scholarly work on lawfare, the idea that legal proceedings can be used as political weapons.

For most of his career he was a litigation specialist rather than a public figure. The turning point came when he took on the defense of Lula during the Operation Car Wash investigations. That case pulled him from relative obscurity into the center of a national argument about due process, judicial conduct and the limits of prosecutorial power, and it set up everything that followed. [edit]

The Lava Jato era made Zanin a familiar name. As Lula's personal attorney he argued that the former president's prosecutions amounted to lawfare, a claim he developed in academic writing as well as in court. The cases turned him into a polarizing media figure and put him on the radar of the national political class.

On June 1, 2023, President Lula nominated Zanin to the STF seat vacated by the retirement of Justice Ricardo Lewandowski. The Federal Senate approved the nomination 58 to 18 on June 21, 2023, and he took office as one of eleven justices later that year.

His most consequential recent work has come in election administration. In early September 2026 he was elected to a second term as a substitute minister at the TSE, and he took office for that additional term on October 2, 2026. During the October 2026 presidential runoff he ordered a nationwide two-hour extension of voting, moving the close of polls to 7 p.m. in places affected by a transport crisis. Justice Nunes Marques then agreed with him and directed polls to close at 7 p.m. in locations that had not yet closed. The extension, combined with a halt in counting, briefly threw the runoff result into uncertainty.

Earlier in October 2026 he gave the TSE five days to explain the cancellation of Anthony Garotinho votes that had elected Douglas Ruas, rejected an appeal by Eduardo Paes on those votes, and ordered Anatel to explain within 48 hours failures in access to Electoral Justice services. In late September he had ordered free access to the TSE's official check site and services within 72 hours of the election. [edit]

Zanin's public image is that of a reserved, technically minded jurist who was thrust into political controversy. Supporters describe him as a defender of due process against lawfare. Opponents call him a partisan appointee, and opposition members have reportedly pushed for his impeachment. The recurring question in Brazilian media, captured by a Valor Econômico headline asking whether he is of the right or the left, reflects how hard it is to slot him ideologically.

He does not cultivate a celebrity presence. His social media voice is institutional and sparse, and his public statements arrive mainly as judicial decisions rather than interviews or posts. The result is a persona built almost entirely from rulings and from the Lula defense, which is unusual for a figure with a large Instagram following. [edit]

iFANN has not yet collected fame data for Cristiano Zanin, so there is no published placement to report. He is not on the September 2026 iFAMOUS Rankings flagship list.

What he has instead of a fandom is a political audience. Supporters who followed the Lava Jato years treat him as the lawyer who stood between Lula and a conviction, and they track his rulings the way sports fans track box scores. Critics watch him just as closely for the opposite reason. There is no fandom name, no organized fan campaign culture and no fan-organized ritual around him; the closest thing is the running argument in Brazilian media over whether his decisions are legally driven or politically driven. His Instagram following, around 89,000, is small enough that comments on his posts read more like a public square than a fan club. [edit]

Zanin's Instagram account, @cristianozaninmartins, had roughly 89,000 followers as of late 2026, a modest number for someone whose rulings can move national elections. He follows about 493 accounts.

The book he co-authored on lawfare is built around the Lula prosecution, which makes it an unusual piece of legal scholarship: the case study and the author's own client are the same person.

Some outlets listed him as 49 in late 2026, while the STF's own birthdate of November 15, 1975 implies he was 50. The birthdate is the authoritative anchor.

His rise to the court has a neat symmetry that Brazilian commentators enjoy pointing out: he defended Lula before the very court that had convicted him, and then Lula nominated him to sit on it. [edit]

Zanin is married to Valeska Teixeira Zanin. The couple has kept their home life out of the public eye, and credible sources document no divorce, separation or other public romantic relationships. No children are confirmed in the available record. Beyond that, the official biographies from the STF and TSE do not detail his parents, siblings or upbringing, and he has not spoken publicly about family background in the material that surfaced during his confirmation or his 2026 election work. [edit]

Luiz Inácio Lula da Silva, his client during the Lava Jato cases and the president who nominated him to the STF. Ricardo Lewandowski, the justice whose retirement opened the seat. Nunes Marques, the STF colleague who concurred with his 2026 election ruling. Alexandre de Moraes, a frequent STF reference point in coverage of the court. [edit]

Zanin's romantic history is short and uncontroversial by the standards of public figures. He is married to Valeska Teixeira Zanin, and credible sources document no divorce, separation or other public relationship. The couple has kept their personal life out of the press through his Lava Jato years, his 2023 confirmation fight and his 2026 election work. As of 2026, he remains married to Valeska Teixeira Zanin, with no public reports of separation. [edit]

Zanin is a sitting Supreme Federal Court justice, and his compensation is set by public salary scales rather than by the celebrity net-worth trackers that estimate entertainers and athletes. That makes his finances unusually straightforward for a public figure of his prominence. The iFANN Editorial Team's analysis of his earnings, public salary and assets points to roughly $1 Million as of 2026.

His income comes almost entirely from the bench. Before 2023 he earned as a private litigator and law professor in São Paulo, a career that typically produces a comfortable but not spectacular fortune for a specialist in civil procedure and arbitration. Since joining the STF he has drawn a justice's salary, and his additional TSE duties do not change the basic picture. He has no endorsement deals, no entertainment ventures and no product lines.

Any figure circulating on celebrity-net-worth sites for Zanin should be treated with caution, because those sites tend to apply entertainment-industry assumptions to judges. The public record supports a modest seven-figure estate rather than anything larger. [edit]

Zanin's distinctions are institutional rather than ceremonial. The Federal Senate confirmed him to the Supreme Federal Court by a 58 to 18 vote on June 21, 2023, and in 2026 he was elected to a second term as a substitute minister at the Superior Electoral Court. He has no entertainment-industry awards. [edit]