Christian tourism is a subcategory of religious tourism which is geared towards Christians. As one of the largest branches of religious tourism, it is estimated that seven percent of the world's Christians—about 168 million people—are "on the move as pilgrims" each year.
Christian tourism refers to the entire industry of Christian travel, tourism, and hospitality. In recent years it has grown to include not only Christians embarking individually or in groups on pilgrimages and missionary travel, but also on religion-based cruises, leisure (fellowship) vacations, crusades, rallies, retreats, monastery visits/guest-stays and Christian camps, as well as visiting Christian tourist attractions.
Each year millions of Christians travel on pilgrimage. The most popular pilgrim destination is the Abrahamic Holy Land, or Jerusalem, Israel. Most Christian pilgrimage destinations are based on the Roman Catholic faith, especially shrines devoted to apparitions of the Blessed Virgin Mary such as: Basilica of Our Lady of Guadalupe in Mexico, Sanctuary of Our Lady of Fatima in Portugal, and Sanctuary of Our Lady of Lourdes in France. There is also interest in pilgrimage to St. Peter's Basilica at the Vatican in Rome, the capital of the Roman Catholic Church.
Although no definitive study has been completed on Christian tourism, some segments of the industry have been measured:
- According to the Religious Conference Management Association, in 2006 more than 14.7 million people attended religious meetings (RCMA members), an increase of more than 10 million from 1994 with 4.4 million attendees. 
- The United Methodist Church experienced an increase of 455% in Volunteers in Mission between 1992 with almost 20,000 volunteers and 2006 with 110,000 volunteers.
- The Christian Camp and Conference Association states that more than eight million people are involved in CCCA member camps and conferences, including more than 120,000 churches. 
- Short-term missions draw 1.6 million participants annually. 
- Christian attractions including Sight & Sound Theatre attracts 800,000 visitors a year while the Holy Land Experience and Focus on the Family welcome center each receives about 250,000 guests annually.  Recently launched Christian attractions include the Creation Museum and Billy Graham Library, both of which are expected to receive about 250,000 visitors each year as well.  
- 50,000 churches in the United States possess a travel program or travel ministry
- CBS Early Show: Rest, relaxation, & religion 
- TIME Magazine: Spirit and adventure 
- USA TODAY: On a wing and a prayer 
- The New York Times: 21st-century religious travel, Leave the sackcloth at home 
- The Los Angeles Times: More agencies are serving the flock - religious travelers 
- Companies see increased interest in spiritual tours 
- Rocky Mountain News: In the footsteps of the faithful 
- Yahoo! Business Traveler: Keeping the Faith 
- Washington Post: Seeking answers with field trips in faith 
- Nassau Guardian (Bahamas): Religious niche being targeted by Bahamas Ministry 
|Wikivoyage has a travel guide for Christianity.|