O’Sheas
3555 Las Vegas Blvd S
Las Vegas
1989-2012

Oak Room Casino
236 N Center St & 240 N Center St
Reno
1953-1973

Oasis Cafe
123 Fremont
Las Vegas
1925-1946
https://over50vegas.com/123_Fremont_Oasis_Cafe.html

Per over50vegas.com: The Oasis Café sign was the first neon sign in Las Vegas built in 1929 followed by the Las Vegas Club sign in 1930

Old Corner
517 N Carson St
Carson City
1954-1958

Old Reno Casino
44 W Commercial Row
Reno
1973-2003

Oliver’s
Hwy 50 & Kingsbury Gr
Stateline
1958-1963

Onslow
133 N Virginia St
Reno
1978-1989

Opera House/Opry House
2542 Las Vegas Blvd N
North Las Vegas
1978-2015

Orbit Inn
707 E Fremont
Las Vegas
1964-1987
https://over50vegas.com/707_Fremont_Orbit_Inn_.html

OT’s Drive In
1731 N Main St
North Las Vegas
c.1944-(closed: yes)

Our Bar
3720 W Bell Vista
Pahrump
1982-1983

Overland
215 Bridge St
Winnemucca
1920s-1930s/1953-1956

Overland
85 Main St
Pioche
1965-1974

Overland/Pioneer
370 4th St
Elko
c.1951-(closed: yes)

Oxford Club
1847 N Main St
North Las Vegas
1948-1958

The Oxford Club ad is from a 1955 Las Vegas Review Journal