Robert E. O'Connor, Jr. (December 9 1944 – September 1 2006) was the Mayor of Pittsburgh, Pennsylvania from January 3 2006 until his death.
He and his wife, Judy Levine O'Connor, had one daughter, Heidy Garth, and two sons, Corey and Terrence. Father Terry O'Connor is a Roman Catholic priest, currently the pastor of Good Samaritan Parish in Ambridge, PA and St. John The Baptist in Baden, PA.
He challenged Murphy in the Democratic primaries for mayor in 1997 and 2001. The 2001 race was especially contentious, as there was a five-way Democratic party primary. Both O'Connor and Murphy spent more than $1 million on their respective campaigns and in the end earned around 30,000 votes each in a very close race. O'Connor lost the race by 699 votes, and conceded the race several days after the primary.
In 1998, he was elected City Council President. He resigned from that position to work for Pennsylvania Governor Ed Rendell.
During his brief tenure, O'Connor started the "Redd Up Pittsburgh" campaign. ("Redd up" is a Pennsylvania Dutch term which means "to clean up" or "straighten up".)
, and strongly emphasized the positives of the city. Each month, from November 2006 to November 2007, local volunteer organization Pittsburgh Cares hosted a "Redd Up Pittsburgh" day in a different neighborhood to honor him. On November 17, 2006, the O'Connor family was presented with Pittsburgh Cares the Hall of Fame Shining Lights Award for the former mayor's "Redd Up Pittsburgh" initiative. He was the first to receive this award.
He began intense treatment, including chemotherapy, immediately. Though the prognosis was initially good, he experienced many complications including seizures and infections.In August, his condition deteriorated
Yarone Zober, recently appointed deputy mayor, served as acting mayor in his absence. During his illness, thousands of black and gold rubber bracelets, inscribed with the words "Bob O'Connor...Everybody's Mayor" and "The Leukemia & Lymphoma Society" were sold. The proceeds were earmarked to benefit The Leukemia & Lymphoma Society . 
On September 1, 2006 at 8:55 pm EDT, O'Connor died at UPMC Shadyside Hospital, 24 hours after being removed from life support. He was 61 years old. City Council President Luke Ravenstahl became mayor in the wake of O'Connor's death. He was sworn in at 10:36 PM EDT at the City County Building in downtown Pittsburgh.
O'Connor's funeral and burial followed on September 7, 2006 at the Cathedral of Saint Paul and Calvary Cemetery, Pittsburgh, Pennsylvania. The grave is located in the south-west area of the cemetery in the Gethsemane section, lot 6, grave 5. The GPS coordinates are N 40° 24.770 W 079° 55.838. His son Terrence, a Roman Catholic priest, delivered the homily at the funeral Mass.