---
title: "Gregory I. Massing | KnowJudges"
canonical: "https://knowjudges.com/kyj/judge/gregory-i-massing-ma"
page_type: "judge_profile"
updated: "2026-10-07"
---

# Gregory I. Massing

Massachusetts Appeals Court · Associate Justice

## Profile

- Court: Massachusetts Appeals Court
- State: Massachusetts
- Role: Associate Justice
- Service status: active

## Summary

Gregory I. Massing — Massachusetts Appeals Court

## Sources

- [Appeals Court Justices](https://www.mass.gov/lists/appeals-court-justices)

## JSON-LD

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "WebPage",
      "@id": "https://knowjudges.com/kyj/judge/gregory-i-massing-ma",
      "url": "https://knowjudges.com/kyj/judge/gregory-i-massing-ma",
      "name": "Gregory I. Massing | KnowJudges",
      "description": "Gregory I. Massing, Massachusetts Appeals Court. Source-linked judicial identity, courtroom procedures, and presentation guidance.",
      "dateModified": "2026-10-07",
      "isPartOf": {
        "@id": "https://knowjudges.com/#website"
      },
      "mainEntity": {
        "@id": "https://knowjudges.com/kyj/judge/gregory-i-massing-ma#judge"
      }
    },
    {
      "@type": "Person",
      "@id": "https://knowjudges.com/kyj/judge/gregory-i-massing-ma#judge",
      "name": "Gregory I. Massing",
      "url": "https://knowjudges.com/kyj/judge/gregory-i-massing-ma",
      "jobTitle": "Associate Justice",
      "worksFor": {
        "@type": "GovernmentOrganization",
        "name": "Massachusetts Appeals Court"
      },
      "sameAs": []
    },
    {
      "@type": "BreadcrumbList",
      "itemListElement": [
        {
          "@type": "ListItem",
          "position": 1,
          "name": "KnowJudges",
          "item": "https://knowjudges.com/kyj"
        },
        {
          "@type": "ListItem",
          "position": 2,
          "name": "Massachusetts",
          "item": "https://knowjudges.com/kyj/state/massachusetts"
        },
        {
          "@type": "ListItem",
          "position": 3,
          "name": "Gregory I. Massing",
          "item": "https://knowjudges.com/kyj/judge/gregory-i-massing-ma"
        }
      ]
    }
  ]
}
```

## Biography

### Professional career

- 2007–2011: General Counsel, Executive Office of Public Safety and Security
- 1999–2005: Assistant District Attorney, Essex County
- 1993–1999: Assistant Attorney General
- Law clerk for U.S. District Judge A. David Mazzone

### Education


### Additional information

- Associate Justice Gregory I. Massing is a member of the Massachusetts Appeals Court, appointed in 2014 by Governor Deval Patrick, with a background in law, public service, and legal education
- his Appeals Court decisions cover a wide range of issues, including criminal law, civil practice, property disputes, consumer protection, and public safety matters



## Published courtroom rules

### Shared court rules

- [Supreme Judicial Court Rule 1:19: Electronic access to the courts](https://knowjudges.com/courtroom-rules/national-shared-set-20acbd9da185f40e1f10b2b2) — Scope is limited to the court class in the source claim.  Shared court context only; case-type restrictions, exceptions, later amendments and case orders apply. This is not a personal preference or a complete rules inventory. [Official source](https://www.mass.gov/supreme-judicial-court-rules/supreme-judicial-court-rule-119-electronic-access-to-the-courts). Collected 2026-07-26.