List of encyclicals of Pope Pius X

This article contains a list of Encyclicals of Pope Pius X. Pope Pius X issued 17 papal encyclicals during his reign as Pope:

No.	Title (Latin)	Title (English translation)	Subject	Date	Text
1.	E supremi		On the Restoration of All things in Christ	4 October 1903	[1]
2.	Ad diem illum laetissimum		On the Immaculate Conception	2 February 1904	[2]
3.	Iucunda sane		On Pope Gregory the Great	12 March 1904	[3]
4.	Acerbo nimis		On Teaching Christian Doctrine	15 April 1905	[4]
5.	Il fermo proposito		On Catholic Action in Italy	11 June 1905	[5]
6.	Vehementer Nos		On the French Law of Separation	11 February 1906	[6]
7.	Tribus circiter		On the Mariavites: Mystic Priests of Poland	5 April 1906	[7]
8.	Pieni l'animo		On the Clergy in Italy	28 July 1906	[8]
9.	Gravissimo officii munere		On French Associations of Worship	10 August 1906	[9]
10.	Une fois encore		On the Separation of Church and State	6 January 1907	[10]
11.	Pascendi dominici gregis		On the Doctrine of the Modernists	8 September 1907	[11]
12.	Communium rerum		On St. Anselm of Aosta	21 April 1909	[12]
13.	Editae saepe		On St. Charles Borromeo	26 May 1910	[13]
14.	Notre charge apostolique	“Our Apostolic Mandate”	On socialist doctrines of the Sillon movement	15 August 1910	[14]
15.	Iamdudum		On the Law of Separation in Portugal	24 May 1911	[15]
16.	Lacrimabili statu		On the Indians of South America	7 June 1912	[16]
17.	Singulari quadam		On Labour Organisations	24 September 1912	[17]