| Ryuzo Anzai | |
| League: | B.League |
| Team: | Utsunomiya Brex |
| Position: | Head coach |
| Height Cm: | 178 |
| Weight Kg: | 83 |
| Birth Date: | 10 November 1980 |
| Birth Place: | Fukushima, Fukushima |
| Nationality: | Japanese |
| High School: | Fukushima Technical (Fukushima, Fukushima) |
| College: | Takushoku University |
| Career Start: | 2003 |
| Career End: | 2013 |
| Years1: | 2003-2004 |
| Team1: | Okura Sanko |
| Years2: | 2004-2005 |
| Team2: | Otsuka Corporation Alphas |
| Years3: | 2005-2007 |
| Team3: | Saitama Broncos |
| Years4: | 2007-2013 |
| Team4: | Link Tochigi Brex |
| Cyears1: | 2013–2017 |
| Cteam1: | Link Tochigi Brex (asst.) |
| Cyears2: | 2017- |
| Highlights: |
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is the Head coach of the Utsunomiya Brex in the Japanese B.League.[1] He played college basketball for Takushoku University. He was selected by the Saitama Broncos with the second overall pick in the 2005 bj League draft.
|-| align="left" | 2005-13| align="left" | Saitama/Tochigi| 260 || || 16.6|| .398 || .370 || .636 || 1.5 || 1.5 || 0.6 || 0.0 || 4.2|-
|- | style="text-align:left;"|Tochigi| style="text-align:left;"|2017-18| 47||30||17|||| style="text-align:center;"|4th in Eastern|||2||0||2||| style="text-align:center;"|Lost in 1st round|-| style="text-align:left;"|Tochigi| style="text-align:left;"|2018-19| 60||49||11|||| style="text-align:center;"|2nd in Eastern|||4||2||2||| style="text-align:center;"|Lost in 2nd round|-| style="text-align:left;"|Utsunomiya| style="text-align:left;"|2019-20| 40||31||9|||| style="text-align:center;"|2nd in Eastern|||-||-||-||| style="text-align:center;"|-|-
Anzai has been married to Mari Konno, a former basketball player..