Robin L. Grammer Jr. (born June 19, 1980) is an American politician who is currently a member of the Maryland House of Delegates representing District 6 in southeast Baltimore County.

[7] In May 2015, following the beating of a Richard Fletcher, a 61-year-old Dundalk resident who intervened in a fight outside his home, Grammer called for the closure of the Baltimore Community High School, where the perpetrators of the attack attended.

[15] Acting Maryland State Police Superintendent Roland Butler acknowledged the documents in March 2023, and said that agency leadership was unaware of the use of the quota system, which he said was "inappropriate and blatantly wrong".

He also introduced a bill requiring the Baltimore County Board of Education to post results of its roll call votes online, which passed and became law.

[22] During the 2023 legislative session, Grammer introduced a bill that would shield school employees from civil liability in a personal injury or property damage dispute involving a student.

[26] In March 2022, Grammer sent a letter to Governor Larry Hogan calling for the resignation of Maryland Secretary of the Environment Ben Grumbles, citing issues with the Back River Wastewater Treatment Plant.

[28] In 2022, Grammer said he opposed a bill that would require gun shops to have increased safety measures, including 24-hour burglary alarm systems and anti-vehicle barriers, which he said would penalize small business owners.

[30] He also introduced amendments to the Gun Safety Act of 2023 that would create concealed carry exemptions for railroad police and armored car company employees, which were adopted unanimously.

[32] In 2024, he introduced a bill that would allow state employees that retired before 2011 to continue receiving pension benefits provided by the State Employee and Retiree Health and Welfare Benefits Program instead of shifting to Medicare Part D.[33] During the 2016 legislative session, Grammer supported legislation that would require Baltimore County to give residents advance notice when moving public housing residents from Baltimore into suburban houses in the county.

[40] He signed onto a letter condemning the jury's guilty verdict in the trial in May 2024, calling the ruling a "political prosecution from a kangaroo court and left-leaning prosecutor" that is turning the U.S. justice system into a "third world parody of law and order".

[44] During the 2024 legislative session, Grammer introduced a bill that would require Maryland to submit abortion-related data to the Centers for Disease Control and Prevention (CDC).