| Type: | Bishop |
| Honorific-Prefix: | His Excellency |
| Peter Baptist Tadamaro Ishigami | |
| Honorific-Suffix: | OFMCap |
| See: | Diocese of Naha |
| Term: | 1972 - 1997 |
| Predecessor: | None |
| Successor: | Berard Toshio Oshikawa |
| Ordination: | 6 September 1952 |
| Consecration: | 11 February 1973 |
| Consecrated By: | Bruno Wüstenberg |
| Rank: | Bishop |
| Birth Date: | 1 December 1920 |
| Birth Place: | Kasari, Kagoshima, Japan |
| Death Place: | Naha, Okinawa, Japan |
| Nationality: | ese |
Peter Baptist Tadamaro Ishigami, OFMCap (Japanese: ペトロ・バプティスタ石神忠真郎; December 1, 1920 – October 25, 2014) was a Japanese prelate of the Roman Catholic Church.
Ishigami was born in Kasari, Japan and ordained a priest on September 6, 1952 for the Order of Friars Minor Capuchin. Ishigami was appointed Bishop of the Diocese of Naha on December 18, 1972 where served until his retirement on January 24, 1997.[1]