The Missionary Sisters Servants of the Holy Spirit, also known as Holy Spirit Missionary Sisters, or simply Holy Spirit Sisters (SSpS Latin: Servae Spiritus Sancti) is a religious congregation within the Catholic Church. The group has 4,000 members in 49 different countries. The congregation was founded by Saint Arnold Janssen in 1889 in Steyl, the Netherlands. Janssen selected Maria Helena Stollenwerk (1852–1900) and Hendrina Stenmanns, called Mother Josepha (1852–1903) as first leaders and granted them the title of co-foundresses. Helena Stollenwerk became also the Co-Foundress of the Congregation Holy Spirit Adoration Sisters (officially called Servants of the Holy Spirit of Perpetual Adoration). Jannsen also founded (in 1875) a male missionary congregation called Divine Word Missionaries.
This community of religious women is rooted in the Trinitarian spirituality: "Empowered by the Holy Spirit, they, in collaboration with dedicated laity and clergy, live and proclaim the Gospel of God’s love, justice, and peace. In dialogue with people of diverse cultures and traditions, they minister and journey together promoting human dignity and life-giving relationships."
The society was founded by Saint Arnold Janssen. He perceived a need for female missionaries to complement the work of male missionaries. Janssen also founded the Holy Spirit Adoration Sisters or Missionary Sisters Servant Holy Spirit of Perpetual Adoration (Latin:Congregatio Servarum Spiritus Sancti de Adoratione perpetua), or Holy Spirit Sisters of Perpetual Adoration, also known as Pink Sisters, on September 8, 1896. This is a contemplative congregation.
Ministries include education, health, pastoral care, spiritual guidance, adult education, catechetics, chaplaincy work, social work, administration and interfaith dialogue.