Nevada Law Directory
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John L. Giordani III

Active

Bar #12381 - ATTORNEY Active

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Admitted
10/6/2011 (15 years)
Law school
William S. Boyd, School of Law
Location
Las Vegas, NV

Contact and address

Address
Clark County District Attorney
200 Lewis Avenue
Las Vegas, NV 89155

Record last verified Jun 7, 2026

Discipline history

No discipline on record.

Record last verified Jun 7, 2026

Appellate record

Handled 11 Supreme Court of Nevada / Court of Appeals of Nevada cases on record.

Results in appellate decisions and orders

91% won of 11 decided cases
Won 10Mixed 0Lost 1
Civil cases
100% of 1
Criminal cases
83% of 6
Court-order requests
100% of 4
Details by role (challenging vs. defending a ruling)
  • Civil cases - Defending a ruling: won 1 of 1
  • Criminal cases - Defending a ruling: won 5 of 6
  • Court-order requests - Opposing a court-order request: won 4 of 4

Appellate courts uphold far more rulings than they overturn, so lawyers who mostly defend rulings tend to show higher won-shares than lawyers who mostly challenge them. This breakdown lets you compare like with like.

Won means the court ruled the way this side asked. Mixed means the court agreed in part. Cases that were dismissed or have no clear result are listed but not counted. Based on the court's published decisions and unpublished orders; coverage is still being extended.

  • 88110 - TALLEY (OMAR) VS. STATE (Dec 4, 2025)Ruling upheldWon - defended the ruling case details
  • 91230 - ALVAREZ (KASSANDRA) VS. DIST. CT. (STATE) (CRIMINAL) (Nov 4, 2025)Request deniedWon - opposed the court order case details
  • 85004 - LEE (MICHAEL) VS. STATE (Sep 12, 2025)Ruling upheldWon - defended the ruling case details
  • 83058 - DIBBLE VS. THE JUSTICE CT. OF LAS VEGAS TWP. (Dec 22, 2022)Ruling upheldWon - defended the ruling case details
  • 83914 - FROST (MALIK) VS. DIST. CT. (STATE) (Oct 17, 2022)Request deniedWon - opposed the court order case details
  • 83535 - FROST (MALIK) VS. DIST. CT. (STATE) (Oct 14, 2021)Request deniedWon - opposed the court order case details
  • 77751 - MATTHEWS (JEMAR) VS. STATE (Jul 9, 2020)Ruling overturnedLost - defended the ruling case details
  • 74057 - SLAUGHTER (DANIELLE) VS. STATE (Apr 25, 2019)Ruling upheldWon - defended the ruling case details
  • 70542 - RICHARD (DVONTAE) VS. STATE (Aug 23, 2018)Ruling upheldWon - defended the ruling case details
  • 69355 - SUPRANOVICH (THOMAS) VS. STATE (Jul 26, 2018)Ruling upheldWon - defended the ruling case details

Case data via YourNevadaJudges.com - Nevada appellate decisions and orders

In the news

  • Judge sentences Nevada mom for drowning young son, daughter: 'I will remember your case forever'

    “…News Service via Getty Images) Clark County Chief Deputy District Attorney John Giordani called the murders an "unforgivable crime." "This is one of the most extreme…”

    foxnews.com - May 13, 2026 - read article

  • ‘Horrific crime’: Former Henderson woman sentenced for drowning children in bathtubs

    “…for stealing their futures,” she said. Chief Deputy District Attorney John Giordani called Trevino’s actions “unforgivable.” It was one of the…”

    reviewjournal.com - May 12, 2026 - read article

  • Prosecutors say sexual assault played role in Lesly Palacio slaying

    “…and sat with a stoic expression on his face as Chief Deputy District Attorney John Giordani and defense attorney Matthew Pennell argued the merits of whether a February…”

    reviewjournal.com - Apr 20, 2026 - read article

  • Prosecutors move to add sexual assault theory in Lesly Palacio killing after DNA tests

    “…a sexual assault or attempted sexual assault. Chief Deputy District Attorney John Giordani said in the motion that the theory should not be a surprise based on the…”

    reviewjournal.com - Mar 4, 2026 - read article

  • Judge orders decades in prison for killer in Henderson decapitation case

    “…that occurred following that,” he said. Chief Deputy District Attorney John Giordani said Michaels was an example of someone who functioned relatively normally…”

    reviewjournal.com - Jan 8, 2026 - read article

View all 25 news mentions

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Profile data from official public records, last verified Jun 7, 2026. Request a correction via the corrections page.