HTML5 实体名称（字母 - R）
并非下表中的所有实体都能在所有的浏览器中正确地显示。
目前，IE 11 是唯一一个能正确显示所有 HTML5 实体的浏览器。
| 字符 | 实体名称 | 十六进制 |
|---|---|---|
| ⇛ | rAarr | 021DB |
| ∽̱ | race | 0223D + 00331 |
| Ŕ | Racute | 00154 |
| ŕ | racute | 00155 |
| √ | radic | 0221A |
| ⦳ | raemptyv | 029B3 |
| ⟫ | Rang | 027EB |
| ⟩ | rang | 027E9 |
| ⦒ | rangd | 02992 |
| ⦥ | range | 029A5 |
| ⟩ | rangle | 027E9 |
| » | raquo | 000BB |
| ↠ | Rarr | 021A0 |
| ⇒ | rArr | 021D2 |
| → | rarr | 02192 |
| ⥵ | rarrap | 02975 |
| ⇥ | rarrb | 021E5 |
| ⤠ | rarrbfs | 02920 |
| ⤳ | rarrc | 02933 |
| ⤞ | rarrfs | 0291E |
| ↪ | rarrhk | 021AA |
| ↬ | rarrlp | 021AC |
| ⥅ | rarrpl | 02945 |
| ⥴ | rarrsim | 02974 |
| ⤖ | Rarrtl | 02916 |
| ↣ | rarrtl | 021A3 |
| ↝ | rarrw | 0219D |
| ⤜ | rAtail | 0291C |
| ⤚ | ratail | 0291A |
| ∶ | ratio | 02236 |
| ℚ | rationals | 0211A |
| ⤐ | RBarr | 02910 |
| ⤏ | rBarr | 0290F |
| ⤍ | rbarr | 0290D |
| ❳ | rbbrk | 02773 |
| } | rbrace | 0007D |
| ] | rbrack | 0005D |
| ⦌ | rbrke | 0298C |
| ⦎ | rbrksld | 0298E |
| ⦐ | rbrkslu | 02990 |
| Ř | Rcaron | 00158 |
| ř | rcaron | 00159 |
| Ŗ | Rcedil | 00156 |
| ŗ | rcedil | 00157 |
| ⌉ | rceil | 02309 |
| } | rcub | 0007D |
| Р | Rcy | 00420 |
| р | rcy | 00440 |
| ⤷ | rdca | 02937 |
| ⥩ | rdldhar | 02969 |
| ” | rdquo | 0201D |
| ” | rdquor | 0201D |
| ↳ | rdsh | 021B3 |
| ℜ | Re | 0211C |
| ℜ | real | 0211C |
| ℛ | realine | 0211B |
| ℜ | realpart | 0211C |
| ℝ | reals | 0211D |
| ▭ | rect | 025AD |
| ® | reg | 000AE |
| ∋ | ReverseElement | 0220B |
| ⇋ | ReverseEquilibrium | 021CB |
| ⥯ | ReverseUpEquilibrium | 0296F |
| ⥽ | rfisht | 0297D |
| ⌋ | rfloor | 0230B |
| ℜ | Rfr | 0211C |
| 𝔯 | rfr | 1D52F |
| ⥤ | rHar | 02964 |
| ⇁ | rhard | 021C1 |
| ⇀ | rharu | 021C0 |
| ⥬ | rharul | 0296C |
| Ρ | Rho | 003A1 |
| ρ | rho | 003C1 |
| ϱ | rhov | 003F1 |
| ⟩ | RightAngleBracket | 027E9 |
| → | RightArrow | 02192 |
| ⇒ | Rightarrow | 021D2 |
| → | rightarrow | 02192 |
| ⇥ | RightArrowBar | 021E5 |
| ⇄ | RightArrowLeftArrow | 021C4 |
| ↣ | rightarrowtail | 021A3 |
| ⌉ | RightCeiling | 02309 |
| ⟧ | RightDoubleBracket | 027E7 |
| ⥝ | RightDownTeeVector | 0295D |
| ⇂ | RightDownVector | 021C2 |
| ⥕ | RightDownVectorBar | 02955 |
| ⌋ | RightFloor | 0230B |
| ⇁ | rightharpoondown | 021C1 |
| ⇀ | rightharpoonup | 021C0 |
| ⇄ | rightleftarrows | 021C4 |
| ⇌ | rightleftharpoons | 021CC |
| ⇉ | rightrightarrows | 021C9 |
| ↝ | rightsquigarrow | 0219D |
| ⊢ | RightTee; | 022A2 |
| ↦ | RightTeeArrow | 021A6 |
| ⥛ | RightTeeVector | 0295B |
| ⋌ | rightthreetimes | 022CC |
| ⊳ | RightTriangle | 022B3 |
| ⧐ | RightTriangleBar | 029D0 |
| ⊵ | RightTriangleEqual | 022B5 |
| ⥏ | RightUpDownVector | 0294F |
| ⥜ | RightUpTeeVector | 0295C |
| ↾ | RightUpVector | 021BE |
| ⥔ | RightUpVectorBar | 02954 |
| ⇀ | RightVector | 021C0 |
| ⥓ | RightVectorBar | 02953 |
| ˚ | ring | 002DA |
| ≓ | risingdotseq | 02253 |
| ⇄ | rlarr | 021C4 |
| ⇌ | rlhar | 021CC |
| | rlm | 0200F |
| ⎱ | rmoust | 023B1 |
| ⎱ | rmoustache | 023B1 |
| ⫮ | rnmid | 02AEE |
| ⟭ | roang | 027ED |
| ⇾ | roarr | 021FE |
| ⟧ | robrk | 027E7 |
| ⦆ | ropar | 02986 |
| ℝ | Ropf | 0211D |
| 𝕣 | ropf | 1D563 |
| ⨮ | roplus | 02A2E |
| ⨵ | rotimes | 02A35 |
| ⥰ | RoundImplies | 02970 |
| ) | rpar | 00029 |
| ⦔ | rpargt | 02994 |
| ⨒ | rppolint | 02A12 |
| ⇉ | rrarr | 021C9 |
| ⇛ | Rrightarrow | 021DB |
| › | rsaquo | 0203A |
| ℛ | Rscr | 0211B |
| 𝓇 | rscr | 1D4C7 |
| ↱ | Rsh | 021B1 |
| ↱ | rsh | 021B1 |
| ] | rsqb | 0005D |
| ’ | rsquo | 02019 |
| ’ | rsquor | 02019 |
| ⋌ | rthree | 022CC |
| ⋊ | rtimes | 022CA |
| ▹ | rtri | 025B9 |
| ⊵ | rtrie | 022B5 |
| ▸ | rtrif | 025B8 |
| ⧎ | rtriltri | 029CE |
| ⧴ | RuleDelayed | 029F4 |
| ⥨ | ruluhar | 02968 |
| ℞ | rx | 0211E |
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