Cardinals created by Leo XIII

(1816–1891), made a cardinal on 12 May 1879 (1801–1890), made a cardinal on 12 May 1879. After waiting more than a year, on 12 May 1879, Pope Leo created cardinals for the first time, six of the order of cardinal priests and four of the order of cardinal deacons, including among the latter his brother, Giuseppe Pecci. On 22 September he gave red galeri to three of them (Desprez, Haynald, and Pie), as well as to János Simor, whom Pope Pius IX had made a cardinal in 1873. Von Fürstenberg joined his cousin Friedrich Prince zu Schwarzenberg, a cardinal since 1842. ==19 September 1879==

(1832–1887), made a cardinal on 19 September 1879 Pope Leo created four cardinals on 19 September 1879. ==13 December 1880==

(1809–1884), made a cardinal on 13 December 1880 Pope Leo announced the creation of one cardinal on 13 December 1880, reserving the names of three others in pectore. Hassoun was the first Armenian cardinal and first Oriental-rite cardinal since 1439. Ricci Paracciani's cousin Salvatore Nobili Vitelleschi was made a cardinal in 1875, just five months before he died. Cardinal in pectore ==27 March 1882==

(1825–1892), made a cardinal on 27 March 1882 On 27 March 1882, Pope Leo announced the names of two cardinals he had created in pectore in December 1880 and created another five, revealing the names of all but one (Lavigerie). Angelo Jacobini joined his cousin Luigi, then Secretary of State, who was made a cardinal in 1879. Cardinal in pectore ==25 September 1882==

(1817–1897), made a cardinal on 25 September 1882 Pope Leo announced the creation of two cardinals on 25 September 1882. ==24 March 1884==

Pope Leo created two cardinals on 24 March 1884. ==10 November 1884==

(1814–1904), made a cardinal on 10 November 1884 On 10 November 1884, Pope Leo announced the creation of eight cardinals and announced the name of one, Carlo Laurenzi, made a cardinal in pectore in December 1880. ==27 July 1885==

(1813–1895), made a cardinal on 27 July 1885 On 27 July 1885, Pope Leo created five cardinals of the order of cardinal priests and one cardinal deacon (Cristofori). ==7 June 1886==

(1834–1921), made a cardinal on 7 June 1886 Pope Leo created seven cardinals on 7 June 1886. The two cardinal deacons Pope Leo created on 7 June 1886, Theodoli and Mazzella, were assigned their deaconries on 10 June; the other five cardinal priests were given their titular churches on 17 March 1887. ==14 March 1887==

(1843–1913), made a cardinal on 14 March 1887 (1822–1893), made a cardinal on 14 March 1887 Pope Leo created five cardinals, all cardinal priests, on 14 March 1887. ==23 May 1887==

Pope Leo created two cardinal deacons on 23 May 1887. Bausa was not yet a bishop and was only consecrated in March 1889. Pallotti was never consecrated a bishop. ==11 February 1889==

(1818–1894), made a cardinal on 11 February 1889 Pope Leo announced the creation of three cardinals on 11 February 1889. ==24 May 1889==

(1827–1906), made a cardinal on 24 May 1889 Pope Leo created seven cardinals on 24 May 1889. Guilbert died less than three months later without having visited Rome to be assigned his titular church. (1844–1899), made a cardinal on 24 May 1889. ==30 December 1889==

On 30 December 1889, Pope Leo created a single cardinal without making it known. His brother Serafino was already a cardinal. Cardinal in pectore ==23 June 1890==

(1817–1894), made a cardinal on 23 June 1890 Pope Leo created three cardinals of the order of cardinal priests on 23 June 1890 and announced he had created Vincenzo Vannutelli a cardinal in pectore the previous December. ==1 June 1891==

(1820–1911), made a cardinal on 1 June 1891 Pope Leo created two cardinals on 1 June 1891. Rotelli received his red hat from French President Sadi Carnot, but died before being invested by the pope with the other symbols of his new rank. ==14 December 1891==

Pope Leo created two cardinals of the order of cardinal priests on 14 December 1891. ==16 January 1893==

(1832–1915), made a cardinal on 16 January 1893 (1840–1924), made a cardinal on 16 January 1893 Pope Leo created fourteen cardinals publicly on 16 January 1893 and two others in pectore. Cardinal in pectore ==12 June 1893==

(1835–1914), made a cardinal on 12 June 1893, and elected as Pope Pius X on 4 August 1903. Pope Leo created five cardinals in a consistory held on 12 June 1893, including Giuseppe Sarto, his successor as Pope Pius X. ==18 May 1894==

(1850–1921), made a cardinal on 18 May 1894 Pope Leo created five cardinals in May 1894, four cardinal priests and one cardinal deacon (Segna). He announced that he had made Andreas Steinhuber a cardinal in pectore previously. ==29 November 1895==